316811920 has 40 divisors (see below), whose sum is σ = 754561080. Its totient is φ = 123632640.

The previous prime is 316811903. The next prime is 316811941. The reversal of 316811920 is 29118613.

It can be written as a sum of positive squares in 4 ways, for example, as 18766224 + 298045696 = 4332^2 + 17264^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45015 + ... + 51574.

It is an arithmetic number, because the mean of its divisors is an integer number (18864027).

Almost surely, 2^316811920 is an apocalyptic number.

It is an amenable number.

316811920 is an abundant number, since it is smaller than the sum of its proper divisors (437749160).

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

316811920 is a wasteful number, since it uses less digits than its factorization.

316811920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96643 (or 96637 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 316811920 is about 17799.2112184782. The cubic root of 316811920 is about 681.7113182121.

The spelling of 316811920 in words is "three hundred sixteen million, eight hundred eleven thousand, nine hundred twenty".