42,040 in words
42,040
forty-two thousand forty
42,040 is written forty-two thousand forty.
Ways to write it
- As an ordinal
- forty-two thousand fortieth
- Expanded form
- 40,000 + 2,000 + 40
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 4 | 40,000 |
| thousands | 2 | 2,000 |
| hundreds | 0 | 0 |
| tens | 4 | 40 |
| ones | 0 | 0 |
Number facts
- Even or odd
- Even
- Prime or composite
- Composite
- Factors
- 1, 2, 4, 5, 8, 10, 20, 40, 1,051, 2,102, 4,204, 5,255, 8,408, 10,510, 21,020 and 42,040 (16 factors)
- First 10 multiples
- 42,040, 84,080, 126,120, 168,160, 210,200, 252,240, 294,280, 336,320, 378,360, 420,400
- Square
- 42,040 × 42,040 = 1,767,361,600
- Square root
- ≈ 205.04
- Sum of the digits
- 4 + 2 + 0 + 4 + 0 = 10
- Rounded to the nearest 10
- 42,040
- Rounded to the nearest 100
- 42,000
- Rounded to the nearest 1000
- 42,000
- Number before
- 42,039
- Number after
- 42,041
- In binary
1010010000111000
Quick check
What number comes just after 42,040?
Show the answer
42,041
Is 42,040 even or odd?
Show the answer
Even
What is 42,040 + 10?
Show the answer
42,050
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 42,040 in words?
42,040 is written "forty-two thousand forty".
Is 42,040 a prime number?
No. 42,040 is a composite number, because it has more than two factors.
What are the factors of 42,040?
The factors of 42,040 are 1, 2, 4, 5, 8, 10, 20, 40, 1,051, 2,102, 4,204, 5,255, 8,408, 10,510, 21,020 and 42,040.