18,440 in words
18,440
eighteen thousand four hundred and forty
18,440 is written eighteen thousand four hundred and forty.
Ways to write it
- As an ordinal
- eighteen thousand four hundred and fortieth
- Expanded form
- 10,000 + 8,000 + 400 + 40
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 1 | 10,000 |
| thousands | 8 | 8,000 |
| hundreds | 4 | 400 |
| 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, 461, 922, 1,844, 2,305, 3,688, 4,610, 9,220 and 18,440 (16 factors)
- First 10 multiples
- 18,440, 36,880, 55,320, 73,760, 92,200, 110,640, 129,080, 147,520, 165,960, 184,400
- Square
- 18,440 × 18,440 = 340,033,600
- Square root
- ≈ 135.79
- Sum of the digits
- 1 + 8 + 4 + 4 + 0 = 17
- Rounded to the nearest 10
- 18,440
- Rounded to the nearest 100
- 18,400
- Rounded to the nearest 1000
- 18,000
- Number before
- 18,439
- Number after
- 18,441
- In binary
100100000001000
Quick check
What number comes just after 18,440?
Show the answer
18,441
Is 18,440 even or odd?
Show the answer
Even
What is 18,440 + 10?
Show the answer
18,450
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 18,440 in words?
18,440 is written "eighteen thousand four hundred and forty".
Is 18,440 a prime number?
No. 18,440 is a composite number, because it has more than two factors.
What are the factors of 18,440?
The factors of 18,440 are 1, 2, 4, 5, 8, 10, 20, 40, 461, 922, 1,844, 2,305, 3,688, 4,610, 9,220 and 18,440.