316915380 has 36 divisors (see below), whose sum is σ = 961310532. Its totient is φ = 84510720.

The previous prime is 316915349. The next prime is 316915409. The reversal of 316915380 is 83519613.

It is a happy number.

316915380 is a `hidden beast` number, since 31 + 6 + 91 + 538 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 92275236 + 224640144 = 9606^2 + 14988^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 880141 + ... + 880500.

Almost surely, 2^316915380 is an apocalyptic number.

316915380 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

316915380 is an abundant number, since it is smaller than the sum of its proper divisors (644395152).

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

316915380 is a wasteful number, since it uses less digits than its factorization.

316915380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1760656 (or 1760651 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 316915380 is about 17802.1172898057. The cubic root of 316915380 is about 681.7855180473.

The spelling of 316915380 in words is "three hundred sixteen million, nine hundred fifteen thousand, three hundred eighty".