315457856 has 56 divisors (see below), whose sum is σ = 734787456. Its totient is φ = 131535360.

The previous prime is 315457789. The next prime is 315457861. The reversal of 315457856 is 658754513.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

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, 7061 + ... + 26091.

Almost surely, 2^315457856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 315457856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (367393728).

315457856 is an abundant number, since it is smaller than the sum of its proper divisors (419329600).

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

315457856 is a wasteful number, since it uses less digits than its factorization.

315457856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19087 (or 19077 counting only the distinct ones).

The product of its digits is 504000, while the sum is 44.

The square root of 315457856 is about 17761.1332971745. The cubic root of 315457856 is about 680.7387127854.

The spelling of 315457856 in words is "three hundred fifteen million, four hundred fifty-seven thousand, eight hundred fifty-six".