400,221 in words
400,221
four hundred thousand two hundred twenty-one
400,221 is written four hundred thousand two hundred twenty-one.
Ways to write it
- As an ordinal
- four hundred thousand two hundred twenty-first
- Expanded form
- 400,000 + 200 + 20 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| hundred thousands | 4 | 400,000 |
| ten thousands | 0 | 0 |
| thousands | 0 | 0 |
| hundreds | 2 | 200 |
| tens | 2 | 20 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 3, 9, 27, 61, 81, 183, 243, 549, 729, 1,647, 2,187, 4,941, 6,561, 14,823, 44,469, 133,407 and 400,221 (18 factors)
- First 10 multiples
- 400,221, 800,442, 1,200,663, 1,600,884, 2,001,105, 2,401,326, 2,801,547, 3,201,768, 3,601,989, 4,002,210
- Square
- 400,221 × 400,221 = 160,176,848,841
- Square root
- ≈ 632.63
- Sum of the digits
- 4 + 0 + 0 + 2 + 2 + 1 = 9
- Rounded to the nearest 10
- 400,220
- Rounded to the nearest 100
- 400,200
- Rounded to the nearest 1000
- 400,000
- Number before
- 400,220
- Number after
- 400,222
- In binary
1100001101101011101
Quick check
What number comes just after 400,221?
Show the answer
400,222
Is 400,221 even or odd?
Show the answer
Odd
What is 400,221 + 10?
Show the answer
400,231
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 400,221 in words?
400,221 is written "four hundred thousand two hundred twenty-one".
Is 400,221 a prime number?
No. 400,221 is a composite number, because it has more than two factors.
What are the factors of 400,221?
The factors of 400,221 are 1, 3, 9, 27, 61, 81, 183, 243, 549, 729, 1,647, 2,187, 4,941, 6,561, 14,823, 44,469, 133,407 and 400,221.