315230720 has 160 divisors (see below), whose sum is σ = 883872000. Its totient is φ = 107778048.

The previous prime is 315230719. The next prime is 315230749. The reversal of 315230720 is 27032513.

It is a tau number, because it is divible by the number of its divisors (160).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 877901 + ... + 878259.

It is an arithmetic number, because the mean of its divisors is an integer number (5524200).

Almost surely, 2^315230720 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 315230720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (441936000).

315230720 is an abundant number, since it is smaller than the sum of its proper divisors (568641280).

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

315230720 is an frugal number, since it uses more digits than its factorization.

315230720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403 (or 373 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 315230720 is about 17754.7379592040. The cubic root of 315230720 is about 680.5752917028.

The spelling of 315230720 in words is "three hundred fifteen million, two hundred thirty thousand, seven hundred twenty".