313615920 has 40 divisors (see below), whose sum is σ = 972210096. Its totient is φ = 83630848.

The previous prime is 313615909. The next prime is 313615921. The reversal of 313615920 is 29516313.

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

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

It is not an unprimeable number, because it can be changed into a prime (313615921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 653127 + ... + 653606.

Almost surely, 2^313615920 is an apocalyptic number.

313615920 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

313615920 is an abundant number, since it is smaller than the sum of its proper divisors (658594176).

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

313615920 is a wasteful number, since it uses less digits than its factorization.

313615920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1306749 (or 1306743 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 313615920 is about 17709.2043864201. The cubic root of 313615920 is about 679.4111973468.

The spelling of 313615920 in words is "three hundred thirteen million, six hundred fifteen thousand, nine hundred twenty".