Q: What is the negative version of the number 21,638,424?
A: -21,638,424
Negative numbers are usually written with - in front of them. They represent a number that is less than zero.
Here are more examples of negative numbers in sequence:
| 21,638,422 | 21,638,423 | 21,638,425 | 21,638,426 |
| -21,638,422 | -21,638,423 | -21,638,425 | -21,638,426 |