313643730 has 16 divisors (see below), whose sum is σ = 752745024. Its totient is φ = 83638320.

The previous prime is 313643719. The next prime is 313643731. The reversal of 313643730 is 37346313.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 10454791 = 313643730 / (3 + 1 + 3 + 6 + 4 + 3 + 7 + 3 + 0).

It is not an unprimeable number, because it can be changed into a prime (313643731) 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, 5227366 + ... + 5227425.

It is an arithmetic number, because the mean of its divisors is an integer number (47046564).

Almost surely, 2^313643730 is an apocalyptic number.

313643730 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

313643730 is an abundant number, since it is smaller than the sum of its proper divisors (439101294).

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

313643730 is a wasteful number, since it uses less digits than its factorization.

313643730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10454801.

The product of its (nonzero) digits is 13608, while the sum is 30.

The square root of 313643730 is about 17709.9895539213. The cubic root of 313643730 is about 679.4312790941.

The spelling of 313643730 in words is "three hundred thirteen million, six hundred forty-three thousand, seven hundred thirty".