313640724 has 48 divisors (see below), whose sum is σ = 743694336. Its totient is φ = 102866400.

The previous prime is 313640707. The next prime is 313640731. The reversal of 313640724 is 427046313.

It is a junction number, because it is equal to n+sod(n) for n = 313640691 and 313640700.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 198859 + ... + 200429.

It is an arithmetic number, because the mean of its divisors is an integer number (15493632).

Almost surely, 2^313640724 is an apocalyptic number.

It is an amenable number.

313640724 is an abundant number, since it is smaller than the sum of its proper divisors (430053612).

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

313640724 is a wasteful number, since it uses less digits than its factorization.

313640724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1836 (or 1834 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 313640724 is about 17709.9046863612. The cubic root of 313640724 is about 679.4291085029.

The spelling of 313640724 in words is "three hundred thirteen million, six hundred forty thousand, seven hundred twenty-four".