840,221 in words
840,221
eight hundred forty thousand two hundred twenty-one
840,221 is written eight hundred forty thousand two hundred twenty-one.
Ways to write it
- As an ordinal
- eight hundred forty thousand two hundred twenty-first
- Expanded form
- 800,000 + 40,000 + 200 + 20 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| hundred thousands | 8 | 800,000 |
| ten thousands | 4 | 40,000 |
| thousands | 0 | 0 |
| hundreds | 2 | 200 |
| tens | 2 | 20 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 137, 6,133 and 840,221 (4 factors)
- First 10 multiples
- 840,221, 1,680,442, 2,520,663, 3,360,884, 4,201,105, 5,041,326, 5,881,547, 6,721,768, 7,561,989, 8,402,210
- Square
- 840,221 × 840,221 = 705,971,328,841
- Square root
- ≈ 916.64
- Sum of the digits
- 8 + 4 + 0 + 2 + 2 + 1 = 17
- Rounded to the nearest 10
- 840,220
- Rounded to the nearest 100
- 840,200
- Rounded to the nearest 1000
- 840,000
- Number before
- 840,220
- Number after
- 840,222
- In binary
11001101001000011101
Quick check
What number comes just after 840,221?
Show the answer
840,222
Is 840,221 even or odd?
Show the answer
Odd
What is 840,221 + 10?
Show the answer
840,231
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 840,221 in words?
840,221 is written "eight hundred forty thousand two hundred twenty-one".
Is 840,221 a prime number?
No. 840,221 is a composite number, because it has more than two factors.
What are the factors of 840,221?
The factors of 840,221 are 1, 137, 6,133 and 840,221.