318918912 has 144 divisors (see below), whose sum is σ = 968365440. Its totient is φ = 92307456.

The previous prime is 318918893. The next prime is 318918931. The reversal of 318918912 is 219819813.

318918912 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (318918893) and next prime (318918931).

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168789 + ... + 170667.

It is an arithmetic number, because the mean of its divisors is an integer number (6724760).

Almost surely, 2^318918912 is an apocalyptic number.

318918912 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 318918912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (484182720).

318918912 is an abundant number, since it is smaller than the sum of its proper divisors (649446528).

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

318918912 is a wasteful number, since it uses less digits than its factorization.

318918912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1928 (or 1914 counting only the distinct ones).

The product of its digits is 31104, while the sum is 42.

The square root of 318918912 is about 17858.3009270199. The cubic root of 318918912 is about 683.2192452535.

Subtracting from 318918912 its reverse (219819813), we obtain a palindrome (99099099).

The spelling of 318918912 in words is "three hundred eighteen million, nine hundred eighteen thousand, nine hundred twelve".