317253408 has 48 divisors (see below), whose sum is σ = 853112736. Its totient is φ = 103170560.

The previous prime is 317253397. The next prime is 317253437. The reversal of 317253408 is 804352713.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×317253408² = 201299449775228928, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 36366 + ... + 44237.

It is an arithmetic number, because the mean of its divisors is an integer number (17773182).

Almost surely, 2^317253408 is an apocalyptic number.

It is an amenable number.

317253408 is an abundant number, since it is smaller than the sum of its proper divisors (535859328).

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

317253408 is a wasteful number, since it uses less digits than its factorization.

317253408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80657 (or 80649 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 317253408 is about 17811.6087987582. The cubic root of 317253408 is about 682.0278337353.

The spelling of 317253408 in words is "three hundred seventeen million, two hundred fifty-three thousand, four hundred eight".