315395644 has 6 divisors (see below), whose sum is σ = 551942384. Its totient is φ = 157697820.

The previous prime is 315395617. The next prime is 315395653. The reversal of 315395644 is 446593513.

It is a junction number, because it is equal to n+sod(n) for n = 315395597 and 315395606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39424452 + ... + 39424459.

Almost surely, 2^315395644 is an apocalyptic number.

It is an amenable number.

315395644 is a deficient number, since it is larger than the sum of its proper divisors (236546740).

315395644 is a wasteful number, since it uses less digits than its factorization.

315395644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78848915 (or 78848913 counting only the distinct ones).

The product of its digits is 194400, while the sum is 40.

The square root of 315395644 is about 17759.3818586121. The cubic root of 315395644 is about 680.6939599494.

The spelling of 315395644 in words is "three hundred fifteen million, three hundred ninety-five thousand, six hundred forty-four".