317396880 has 240 divisors, whose sum is σ = 1145551680. Its totient is φ = 81575424.

The previous prime is 317396861. The next prime is 317396917. The reversal of 317396880 is 88693713.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (240).

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, 563479 + ... + 564041.

It is an arithmetic number, because the mean of its divisors is an integer number (4773132).

Almost surely, 2^317396880 is an apocalyptic number.

317396880 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 317396880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (572775840).

317396880 is an abundant number, since it is smaller than the sum of its proper divisors (828154800).

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

317396880 is a wasteful number, since it uses less digits than its factorization.

317396880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620 (or 602 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 317396880 is about 17815.6358292372. The cubic root of 317396880 is about 682.1306297421.

The spelling of 317396880 in words is "three hundred seventeen million, three hundred ninety-six thousand, eight hundred eighty".