316115640 has 48 divisors (see below), whose sum is σ = 1027377000. Its totient is φ = 84297408.

The previous prime is 316115627. The next prime is 316115641. The reversal of 316115640 is 46511613.

316115640 is a `hidden beast` number, since 3 + 1 + 6 + 1 + 15 + 640 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316115641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 438690 + ... + 439409.

Almost surely, 2^316115640 is an apocalyptic number.

316115640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

316115640 is an abundant number, since it is smaller than the sum of its proper divisors (711261360).

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

316115640 is a wasteful number, since it uses less digits than its factorization.

316115640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878116 (or 878109 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 316115640 is about 17779.6411662328. The cubic root of 316115640 is about 681.2115368122.

The spelling of 316115640 in words is "three hundred sixteen million, one hundred fifteen thousand, six hundred forty".