389318090 has 16 divisors (see below), whose sum is σ = 800883072. Its totient is φ = 133480464.

The previous prime is 389318053. The next prime is 389318093. The reversal of 389318090 is 90813983.

It is not an unprimeable number, because it can be changed into a prime (389318093) 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, 2780774 + ... + 2780913.

It is an arithmetic number, because the mean of its divisors is an integer number (50055192).

Almost surely, 2^389318090 is an apocalyptic number.

389318090 is an abundant number, since it is smaller than the sum of its proper divisors (411564982).

389318090 is a wasteful number, since it uses less digits than its factorization.

389318090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5561701.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 389318090 is about 19731.1451771052. The cubic root of 389318090 is about 730.1882857037.

The spelling of 389318090 in words is "three hundred eighty-nine million, three hundred eighteen thousand, ninety".