313179640 has 32 divisors (see below), whose sum is σ = 705276000. Its totient is φ = 125161344.

The previous prime is 313179623. The next prime is 313179683. The reversal of 313179640 is 46971313.

It is a junction number, because it is equal to n+sod(n) for n = 313179596 and 313179605.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54421 + ... + 59899.

It is an arithmetic number, because the mean of its divisors is an integer number (22039875).

Almost surely, 2^313179640 is an apocalyptic number.

It is an amenable number.

313179640 is an abundant number, since it is smaller than the sum of its proper divisors (392096360).

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

313179640 is a wasteful number, since it uses less digits than its factorization.

313179640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6919 (or 6915 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 313179640 is about 17696.8822112823. The cubic root of 313179640 is about 679.0960017478.

The spelling of 313179640 in words is "three hundred thirteen million, one hundred seventy-nine thousand, six hundred forty".