315394382 has 4 divisors (see below), whose sum is σ = 473091576. Its totient is φ = 157697190.

The previous prime is 315394381. The next prime is 315394411. The reversal of 315394382 is 283493513.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315394381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78848594 + ... + 78848597.

It is an arithmetic number, because the mean of its divisors is an integer number (118272894).

Almost surely, 2^315394382 is an apocalyptic number.

315394382 is a deficient number, since it is larger than the sum of its proper divisors (157697194).

315394382 is a wasteful number, since it uses less digits than its factorization.

315394382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157697193.

The product of its digits is 77760, while the sum is 38.

The square root of 315394382 is about 17759.3463280606. The cubic root of 315394382 is about 680.6930520559.

The spelling of 315394382 in words is "three hundred fifteen million, three hundred ninety-four thousand, three hundred eighty-two".