317934640 has 40 divisors (see below), whose sum is σ = 741881088. Its totient is φ = 126712320.

The previous prime is 317934601. The next prime is 317934641. The reversal of 317934640 is 46439713.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 317934640.

It is not an unprimeable number, because it can be changed into a prime (317934641) by changing a digit.

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, 15409 + ... + 29551.

Almost surely, 2^317934640 is an apocalyptic number.

It is an amenable number.

317934640 is an abundant number, since it is smaller than the sum of its proper divisors (423946448).

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

317934640 is a wasteful number, since it uses less digits than its factorization.

317934640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14437 (or 14431 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 317934640 is about 17830.7218025519. The cubic root of 317934640 is about 682.5156530556.

The spelling of 317934640 in words is "three hundred seventeen million, nine hundred thirty-four thousand, six hundred forty".