320889634 has 16 divisors (see below), whose sum is σ = 518676480. Its totient is φ = 148012560.

The previous prime is 320889623. The next prime is 320889659. The reversal of 320889634 is 436988023.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60127 + ... + 65245.

It is an arithmetic number, because the mean of its divisors is an integer number (32417280).

Almost surely, 2^320889634 is an apocalyptic number.

320889634 is a deficient number, since it is larger than the sum of its proper divisors (197786846).

320889634 is a wasteful number, since it uses less digits than its factorization.

320889634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7545.

The product of its (nonzero) digits is 248832, while the sum is 43.

The square root of 320889634 is about 17913.3925876703. The cubic root of 320889634 is about 684.6236474901.

The spelling of 320889634 in words is "three hundred twenty million, eight hundred eighty-nine thousand, six hundred thirty-four".