313730720 has 48 divisors (see below), whose sum is σ = 742398048. Its totient is φ = 125287680.

The previous prime is 313730719. The next prime is 313730723. The reversal of 313730720 is 27037313.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 313730720.

It is not an unprimeable number, because it can be changed into a prime (313730723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131135 + ... + 133505.

It is an arithmetic number, because the mean of its divisors is an integer number (15466626).

Almost surely, 2^313730720 is an apocalyptic number.

It is an amenable number.

313730720 is an abundant number, since it is smaller than the sum of its proper divisors (428667328).

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

313730720 is a wasteful number, since it uses less digits than its factorization.

313730720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3213 (or 3205 counting only the distinct ones).

The product of its (nonzero) digits is 2646, while the sum is 26.

The square root of 313730720 is about 17712.4453421881. The cubic root of 313730720 is about 679.4940873676.

The spelling of 313730720 in words is "three hundred thirteen million, seven hundred thirty thousand, seven hundred twenty".