317381028 has 12 divisors (see below), whose sum is σ = 740555760. Its totient is φ = 105793672.

The previous prime is 317381023. The next prime is 317381047. The reversal of 317381028 is 820183713.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 317381028.

It is not an unprimeable number, because it can be changed into a prime (317381021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13224198 + ... + 13224221.

It is an arithmetic number, because the mean of its divisors is an integer number (61712980).

Almost surely, 2^317381028 is an apocalyptic number.

It is an amenable number.

317381028 is an abundant number, since it is smaller than the sum of its proper divisors (423174732).

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

317381028 is a wasteful number, since it uses less digits than its factorization.

317381028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26448426 (or 26448424 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 317381028 is about 17815.1909335825. The cubic root of 317381028 is about 682.1192734924.

The spelling of 317381028 in words is "three hundred seventeen million, three hundred eighty-one thousand, twenty-eight".