321,440 in words
321,440
three hundred twenty-one thousand four hundred forty
321,440 is written three hundred twenty-one thousand four hundred forty.
Ways to write it
- As an ordinal
- three hundred twenty-one thousand four hundred fortieth
- Expanded form
- 300,000 + 20,000 + 1,000 + 400 + 40
Place value
| Place | Digit | Value |
|---|---|---|
| hundred thousands | 3 | 300,000 |
| ten thousands | 2 | 20,000 |
| thousands | 1 | 1,000 |
| hundreds | 4 | 400 |
| tens | 4 | 40 |
| ones | 0 | 0 |
Number facts
- Even or odd
- Even
- Prime or composite
- Composite
- Factors
- 72 factors: too many to list
- First 10 multiples
- 321,440, 642,880, 964,320, 1,285,760, 1,607,200, 1,928,640, 2,250,080, 2,571,520, 2,892,960, 3,214,400
- Square
- 321,440 × 321,440 = 103,323,673,600
- Square root
- ≈ 566.96
- Sum of the digits
- 3 + 2 + 1 + 4 + 4 + 0 = 14
- Rounded to the nearest 10
- 321,440
- Rounded to the nearest 100
- 321,400
- Rounded to the nearest 1000
- 321,000
- Number before
- 321,439
- Number after
- 321,441
- In binary
1001110011110100000
Quick check
What number comes just after 321,440?
Show the answer
321,441
Is 321,440 even or odd?
Show the answer
Even
What is 321,440 + 10?
Show the answer
321,450
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 321,440 in words?
321,440 is written "three hundred twenty-one thousand four hundred forty".
Is 321,440 a prime number?
No. 321,440 is a composite number, because it has more than two factors.