315400520 has 32 divisors (see below), whose sum is σ = 734124600. Its totient is φ = 121809408.

The previous prime is 315400493. The next prime is 315400529. The reversal of 315400520 is 25004513.

315400520 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 149866564 + 165533956 = 12242^2 + 12866^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 315400492 and 315400501.

It is not an unprimeable number, because it can be changed into a prime (315400529) 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 7 ways as a sum of consecutive naturals, for example, 134789 + ... + 137108.

Almost surely, 2^315400520 is an apocalyptic number.

It is an amenable number.

315400520 is an abundant number, since it is smaller than the sum of its proper divisors (418724080).

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

315400520 is a wasteful number, since it uses less digits than its factorization.

315400520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271937 (or 271933 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 315400520 is about 17759.5191376343. The cubic root of 315400520 is about 680.6974677622.

The spelling of 315400520 in words is "three hundred fifteen million, four hundred thousand, five hundred twenty".