315531340 has 24 divisors (see below), whose sum is σ = 667069200. Its totient is φ = 125364288.

The previous prime is 315531323. The next prime is 315531431. The reversal of 315531340 is 43135513.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49962 + ... + 55921.

It is an arithmetic number, because the mean of its divisors is an integer number (27794550).

Almost surely, 2^315531340 is an apocalyptic number.

It is an amenable number.

315531340 is an abundant number, since it is smaller than the sum of its proper divisors (351537860).

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

315531340 is a wasteful number, since it uses less digits than its factorization.

315531340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106041 (or 106039 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 315531340 is about 17763.2018510177. The cubic root of 315531340 is about 680.7915666705.

Adding to 315531340 its reverse (43135513), we get a palindrome (358666853).

The spelling of 315531340 in words is "three hundred fifteen million, five hundred thirty-one thousand, three hundred forty".