316680842 has 8 divisors (see below), whose sum is σ = 475900932. Its totient is φ = 158047740.

The previous prime is 316680821. The next prime is 316680857. The reversal of 316680842 is 248086613.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 230766481 + 85914361 = 15191^2 + 9269^2 .

It is a junction number, because it is equal to n+sod(n) for n = 316680796 and 316680805.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 585092 + ... + 585632.

Almost surely, 2^316680842 is an apocalyptic number.

316680842 is a deficient number, since it is larger than the sum of its proper divisors (159220090).

316680842 is an frugal number, since it uses more digits than its factorization.

316680842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1625 (or 543 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 316680842 is about 17795.5287080772. The cubic root of 316680842 is about 681.6172879931.

Multiplying 316680842 by its product of nonzero digits (55296), we get a cube (17511183839232 = 25968³).

The spelling of 316680842 in words is "three hundred sixteen million, six hundred eighty thousand, eight hundred forty-two".