315388838 has 4 divisors (see below), whose sum is σ = 473083260. Its totient is φ = 157694418.

The previous prime is 315388837. The next prime is 315388841. The reversal of 315388838 is 838883513.

315388838 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 315388792 and 315388801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315388831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78847208 + ... + 78847211.

It is an arithmetic number, because the mean of its divisors is an integer number (118270815).

Almost surely, 2^315388838 is an apocalyptic number.

315388838 is a deficient number, since it is larger than the sum of its proper divisors (157694422).

315388838 is a wasteful number, since it uses less digits than its factorization.

315388838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157694421.

The product of its digits is 552960, while the sum is 47.

The square root of 315388838 is about 17759.1902405487. The cubic root of 315388838 is about 680.6890636268.

The spelling of 315388838 in words is "three hundred fifteen million, three hundred eighty-eight thousand, eight hundred thirty-eight".