317479680 has 432 divisors, whose sum is σ = 1306066944. Its totient is φ = 69672960.

The previous prime is 317479651. The next prime is 317479691. The reversal of 317479680 is 86974713.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2499777 + ... + 2499903.

Almost surely, 2^317479680 is an apocalyptic number.

317479680 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 317479680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (653033472).

317479680 is an abundant number, since it is smaller than the sum of its proper divisors (988587264).

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

317479680 is a wasteful number, since it uses less digits than its factorization.

317479680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192 (or 175 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 317479680 is about 17817.9594791323. The cubic root of 317479680 is about 682.1899408749.

The spelling of 317479680 in words is "three hundred seventeen million, four hundred seventy-nine thousand, six hundred eighty".