632456988 has 24 divisors (see below), whose sum is σ = 1476536208. Its totient is φ = 210704256.

The previous prime is 632456983. The next prime is 632457011. The reversal of 632456988 is 889654236.

It is a self number, because there is not a number n which added to its sum of digits gives 632456988.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (632456983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10320 + ... + 37032.

It is an arithmetic number, because the mean of its divisors is an integer number (61522342).

Almost surely, 2^632456988 is an apocalyptic number.

It is an amenable number.

632456988 is an abundant number, since it is smaller than the sum of its proper divisors (844079220).

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

632456988 is a wasteful number, since it uses less digits than its factorization.

632456988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28693 (or 28691 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 51.

The square root of 632456988 is about 25148.6975408270. The cubic root of 632456988 is about 858.3748776155.

The spelling of 632456988 in words is "six hundred thirty-two million, four hundred fifty-six thousand, nine hundred eighty-eight".