315394242 has 32 divisors (see below), whose sum is σ = 638269632. Its totient is φ = 103892544.

The previous prime is 315394223. The next prime is 315394249. The reversal of 315394242 is 242493513.

It is not an unprimeable number, because it can be changed into a prime (315394249) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 191848 + ... + 193484.

It is an arithmetic number, because the mean of its divisors is an integer number (19945926).

Almost surely, 2^315394242 is an apocalyptic number.

315394242 is an abundant number, since it is smaller than the sum of its proper divisors (322875390).

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

315394242 is a wasteful number, since it uses less digits than its factorization.

315394242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2002.

The product of its digits is 25920, while the sum is 33.

The square root of 315394242 is about 17759.3423864737. The cubic root of 315394242 is about 680.6929513386.

The spelling of 315394242 in words is "three hundred fifteen million, three hundred ninety-four thousand, two hundred forty-two".