320317090 has 32 divisors (see below), whose sum is σ = 604091520. Its totient is φ = 122056704.

The previous prime is 320317087. The next prime is 320317117. The reversal of 320317090 is 90713023.

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, 56401 + ... + 61819.

It is an arithmetic number, because the mean of its divisors is an integer number (18877860).

Almost surely, 2^320317090 is an apocalyptic number.

320317090 is a deficient number, since it is larger than the sum of its proper divisors (283774430).

320317090 is a wasteful number, since it uses less digits than its factorization.

320317090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5706.

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 320317090 is about 17897.4045604384. The cubic root of 320317090 is about 684.2162275358.

The spelling of 320317090 in words is "three hundred twenty million, three hundred seventeen thousand, ninety".