316194640 has 40 divisors (see below), whose sum is σ = 742450248. Its totient is φ = 125222400.

The previous prime is 316194623. The next prime is 316194647. The reversal of 316194640 is 46491613.

It can be written as a sum of positive squares in 4 ways, for example, as 199035664 + 117158976 = 14108^2 + 10824^2 .

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 (34) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 316194596 and 316194605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316194647) 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, 11487 + ... + 27646.

Almost surely, 2^316194640 is an apocalyptic number.

It is an amenable number.

316194640 is an abundant number, since it is smaller than the sum of its proper divisors (426255608).

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

316194640 is a wasteful number, since it uses less digits than its factorization.

316194640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39247 (or 39241 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 316194640 is about 17781.8626695855. The cubic root of 316194640 is about 681.2682789473.

The spelling of 316194640 in words is "three hundred sixteen million, one hundred ninety-four thousand, six hundred forty".