318172980 has 48 divisors (see below), whose sum is σ = 892894464. Its totient is φ = 84654720.

The previous prime is 318172979. The next prime is 318172999. The reversal of 318172980 is 89271813.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21909 + ... + 33411.

It is an arithmetic number, because the mean of its divisors is an integer number (18601968).

Almost surely, 2^318172980 is an apocalyptic number.

318172980 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

318172980 is an abundant number, since it is smaller than the sum of its proper divisors (574721484).

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

318172980 is a wasteful number, since it uses less digits than its factorization.

318172980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11976 (or 11974 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 39.

The square root of 318172980 is about 17837.4039590967. The cubic root of 318172980 is about 682.6861599548.

The spelling of 318172980 in words is "three hundred eighteen million, one hundred seventy-two thousand, nine hundred eighty".