317668380 has 24 divisors (see below), whose sum is σ = 889471632. Its totient is φ = 84711552.

The previous prime is 317668367. The next prime is 317668381. The reversal of 317668380 is 83866713.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317668381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2647177 + ... + 2647296.

It is an arithmetic number, because the mean of its divisors is an integer number (37061318).

Almost surely, 2^317668380 is an apocalyptic number.

317668380 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

317668380 is an abundant number, since it is smaller than the sum of its proper divisors (571803252).

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

317668380 is a wasteful number, since it uses less digits than its factorization.

317668380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5294485 (or 5294483 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 317668380 is about 17823.2539116739. The cubic root of 317668380 is about 682.3250715664.

The spelling of 317668380 in words is "three hundred seventeen million, six hundred sixty-eight thousand, three hundred eighty".