402,021 in words
402,021
four hundred and two thousand and twenty-one
402,021 is written four hundred and two thousand and twenty-one.
Ways to write it
- As an ordinal
- four hundred and two thousand and twenty-first
- Expanded form
- 400,000 + 2,000 + 20 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| hundred thousands | 4 | 400,000 |
| ten thousands | 0 | 0 |
| thousands | 2 | 2,000 |
| hundreds | 0 | 0 |
| tens | 2 | 20 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 3, 9, 19, 57, 171, 2,351, 7,053, 21,159, 44,669, 134,007 and 402,021 (12 factors)
- First 10 multiples
- 402,021, 804,042, 1,206,063, 1,608,084, 2,010,105, 2,412,126, 2,814,147, 3,216,168, 3,618,189, 4,020,210
- Square
- 402,021 × 402,021 = 161,620,884,441
- Square root
- ≈ 634.05
- Sum of the digits
- 4 + 0 + 2 + 0 + 2 + 1 = 9
- Rounded to the nearest 10
- 402,020
- Rounded to the nearest 100
- 402,000
- Rounded to the nearest 1000
- 402,000
- Number before
- 402,020
- Number after
- 402,022
- In binary
1100010001001100101
Quick check
What number comes just after 402,021?
Show the answer
402,022
Is 402,021 even or odd?
Show the answer
Odd
What is 402,021 + 10?
Show the answer
402,031
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 402,021 in words?
402,021 is written "four hundred and two thousand and twenty-one".
Is 402,021 a prime number?
No. 402,021 is a composite number, because it has more than two factors.
What are the factors of 402,021?
The factors of 402,021 are 1, 3, 9, 19, 57, 171, 2,351, 7,053, 21,159, 44,669, 134,007 and 402,021.