317390880 has 48 divisors (see below), whose sum is σ = 999782784. Its totient is φ = 84637440.

The previous prime is 317390873. The next prime is 317390891. The reversal of 317390880 is 88093713.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 330136 + ... + 331095.

It is an arithmetic number, because the mean of its divisors is an integer number (20828808).

Almost surely, 2^317390880 is an apocalyptic number.

317390880 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

317390880 is an abundant number, since it is smaller than the sum of its proper divisors (682391904).

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

317390880 is a wasteful number, since it uses less digits than its factorization.

317390880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661249 (or 661241 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 317390880 is about 17815.4674370335. The cubic root of 317390880 is about 682.1263314332.

The spelling of 317390880 in words is "three hundred seventeen million, three hundred ninety thousand, eight hundred eighty".