428,240 in words
428,240
four hundred and twenty-eight thousand two hundred and forty
428,240 is written four hundred and twenty-eight thousand two hundred and forty.
Ways to write it
- As an ordinal
- four hundred and twenty-eight thousand two hundred and fortieth
- Expanded form
- 400,000 + 20,000 + 8,000 + 200 + 40
Place value
| Place | Digit | Value |
|---|---|---|
| hundred thousands | 4 | 400,000 |
| ten thousands | 2 | 20,000 |
| thousands | 8 | 8,000 |
| hundreds | 2 | 200 |
| tens | 4 | 40 |
| ones | 0 | 0 |
Number facts
- Even or odd
- Even
- Prime or composite
- Composite
- Factors
- 1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 101, 106, 202, 212, 265, 404, 424, 505, 530, 808, 848, 1,010, 1,060, 1,616, 2,020, 2,120, 4,040, 4,240, 5,353, 8,080, 10,706, 21,412, 26,765, 42,824, 53,530, 85,648, 107,060, 214,120 and 428,240 (40 factors)
- First 10 multiples
- 428,240, 856,480, 1,284,720, 1,712,960, 2,141,200, 2,569,440, 2,997,680, 3,425,920, 3,854,160, 4,282,400
- Square
- 428,240 × 428,240 = 183,389,497,600
- Square root
- ≈ 654.40
- Sum of the digits
- 4 + 2 + 8 + 2 + 4 + 0 = 20
- Rounded to the nearest 10
- 428,240
- Rounded to the nearest 100
- 428,200
- Rounded to the nearest 1000
- 428,000
- Number before
- 428,239
- Number after
- 428,241
- In binary
1101000100011010000
Quick check
What number comes just after 428,240?
Show the answer
428,241
Is 428,240 even or odd?
Show the answer
Even
What is 428,240 + 10?
Show the answer
428,250
Practise with a game
Factors, Multiples & Primes
Multiples, factors, prime numbers, square numbers and prime factors.
Number Patterns
Find the missing number in a sequence.Frequently asked questions
How do you write 428,240 in words?
428,240 is written "four hundred and twenty-eight thousand two hundred and forty".
Is 428,240 a prime number?
No. 428,240 is a composite number, because it has more than two factors.
What are the factors of 428,240?
The factors of 428,240 are 1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 101, 106, 202, 212, 265, 404, 424, 505, 530, 808, 848, 1,010, 1,060, 1,616, 2,020, 2,120, 4,040, 4,240, 5,353, 8,080, 10,706, 21,412, 26,765, 42,824, 53,530, 85,648, 107,060, 214,120 and 428,240.