283638992 has 80 divisors (see below), whose sum is σ = 712037760. Its totient is φ = 106292736.

The previous prime is 283638991. The next prime is 283639001. The reversal of 283638992 is 299836382.

It is a self number, because there is not a number n which added to its sum of digits gives 283638992.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (283638991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22538 + ... + 32790.

It is an arithmetic number, because the mean of its divisors is an integer number (8900472).

Almost surely, 2^283638992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 283638992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (356018880).

283638992 is an abundant number, since it is smaller than the sum of its proper divisors (428398768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

283638992 is a wasteful number, since it uses less digits than its factorization.

283638992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10300 (or 10294 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 50.

The square root of 283638992 is about 16841.5851985495. The cubic root of 283638992 is about 657.0352111370.

The spelling of 283638992 in words is "two hundred eighty-three million, six hundred thirty-eight thousand, nine hundred ninety-two".