438,021 in words
438,021
four hundred and thirty-eight thousand and twenty-one
438,021 is written four hundred and thirty-eight thousand and twenty-one.
Ways to write it
- As an ordinal
- four hundred and thirty-eight thousand and twenty-first
- Expanded form
- 400,000 + 30,000 + 8,000 + 20 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| hundred thousands | 4 | 400,000 |
| ten thousands | 3 | 30,000 |
| thousands | 8 | 8,000 |
| hundreds | 0 | 0 |
| tens | 2 | 20 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 3, 9, 27, 16,223, 48,669, 146,007 and 438,021 (8 factors)
- First 10 multiples
- 438,021, 876,042, 1,314,063, 1,752,084, 2,190,105, 2,628,126, 3,066,147, 3,504,168, 3,942,189, 4,380,210
- Square
- 438,021 × 438,021 = 191,862,396,441
- Square root
- ≈ 661.83
- Sum of the digits
- 4 + 3 + 8 + 0 + 2 + 1 = 18
- Rounded to the nearest 10
- 438,020
- Rounded to the nearest 100
- 438,000
- Rounded to the nearest 1000
- 438,000
- Number before
- 438,020
- Number after
- 438,022
- In binary
1101010111100000101
Quick check
What number comes just after 438,021?
Show the answer
438,022
Is 438,021 even or odd?
Show the answer
Odd
What is 438,021 + 10?
Show the answer
438,031
Practise with a game
Factors, Multiples & Primes
Multiples, factors, prime numbers, square numbers and prime factors.
Number Patterns
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How do you write 438,021 in words?
438,021 is written "four hundred and thirty-eight thousand and twenty-one".
Is 438,021 a prime number?
No. 438,021 is a composite number, because it has more than two factors.
What are the factors of 438,021?
The factors of 438,021 are 1, 3, 9, 27, 16,223, 48,669, 146,007 and 438,021.