318730090 has 32 divisors (see below), whose sum is σ = 684184320. Its totient is φ = 104527104.

The previous prime is 318730081. The next prime is 318730117. The reversal of 318730090 is 90037813.

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, 97375 + ... + 100594.

It is an arithmetic number, because the mean of its divisors is an integer number (21380760).

Almost surely, 2^318730090 is an apocalyptic number.

318730090 is an abundant number, since it is smaller than the sum of its proper divisors (365454230).

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

318730090 is a wasteful number, since it uses less digits than its factorization.

318730090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198006.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 318730090 is about 17853.0134711202. The cubic root of 318730090 is about 683.0843809895.

The spelling of 318730090 in words is "three hundred eighteen million, seven hundred thirty thousand, ninety".