318672992 has 96 divisors (see below), whose sum is σ = 713276928. Its totient is φ = 138880000.

The previous prime is 318672989. The next prime is 318673001. The reversal of 318672992 is 299276813.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1024517 + ... + 1024827.

It is an arithmetic number, because the mean of its divisors is an integer number (7429968).

Almost surely, 2^318672992 is an apocalyptic number.

318672992 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 318672992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (356638464).

318672992 is an abundant number, since it is smaller than the sum of its proper divisors (394603936).

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

318672992 is a wasteful number, since it uses less digits than its factorization.

318672992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444 (or 436 counting only the distinct ones).

The product of its digits is 326592, while the sum is 47.

The square root of 318672992 is about 17851.4142857086. The cubic root of 318672992 is about 683.0435888141.

The spelling of 318672992 in words is "three hundred eighteen million, six hundred seventy-two thousand, nine hundred ninety-two".