318942730 has 16 divisors (see below), whose sum is σ = 576284544. Its totient is φ = 127090960.

The previous prime is 318942697. The next prime is 318942761. The reversal of 318942730 is 37249813.

318942730 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 318942730.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58006 + ... + 63265.

It is an arithmetic number, because the mean of its divisors is an integer number (36017784).

Almost surely, 2^318942730 is an apocalyptic number.

318942730 is a deficient number, since it is larger than the sum of its proper divisors (257341814).

318942730 is a wasteful number, since it uses less digits than its factorization.

318942730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121541.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 318942730 is about 17858.9677753223. The cubic root of 318942730 is about 683.2362532455.

The spelling of 318942730 in words is "three hundred eighteen million, nine hundred forty-two thousand, seven hundred thirty".