315395940 has 24 divisors (see below), whose sum is σ = 883108800. Its totient is φ = 84105568.

The previous prime is 315395929. The next prime is 315395947. The reversal of 315395940 is 49593513.

It is not an unprimeable number, because it can be changed into a prime (315395947) 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, 2628240 + ... + 2628359.

It is an arithmetic number, because the mean of its divisors is an integer number (36796200).

Almost surely, 2^315395940 is an apocalyptic number.

315395940 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

315395940 is an abundant number, since it is smaller than the sum of its proper divisors (567712860).

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

315395940 is a wasteful number, since it uses less digits than its factorization.

315395940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5256611 (or 5256609 counting only the distinct ones).

The product of its (nonzero) digits is 72900, while the sum is 39.

The square root of 315395940 is about 17759.3901922335. The cubic root of 315395940 is about 680.6941728939.

The spelling of 315395940 in words is "three hundred fifteen million, three hundred ninety-five thousand, nine hundred forty".