318142920 has 32 divisors (see below), whose sum is σ = 954429120. Its totient is φ = 84838080.

The previous prime is 318142883. The next prime is 318142931. The reversal of 318142920 is 29241813.

It is a super-2 number, since 2×318142920² = 202429835092252800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1325476 + ... + 1325715.

It is an arithmetic number, because the mean of its divisors is an integer number (29825910).

Almost surely, 2^318142920 is an apocalyptic number.

318142920 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

318142920 is an abundant number, since it is smaller than the sum of its proper divisors (636286200).

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

318142920 is a wasteful number, since it uses less digits than its factorization.

318142920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2651205 (or 2651201 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 318142920 is about 17836.5613277896. The cubic root of 318142920 is about 682.6646599181.

The spelling of 318142920 in words is "three hundred eighteen million, one hundred forty-two thousand, nine hundred twenty".