389332018 has 16 divisors (see below), whose sum is σ = 605487960. Its totient is φ = 187532800.

The previous prime is 389331967. The next prime is 389332033. The reversal of 389332018 is 810233983.

It can be written as a sum of positive squares in 4 ways, for example, as 366224769 + 23107249 = 19137^2 + 4807^2 .

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, 19458 + ... + 34018.

Almost surely, 2^389332018 is an apocalyptic number.

389332018 is a deficient number, since it is larger than the sum of its proper divisors (216155942).

389332018 is a wasteful number, since it uses less digits than its factorization.

389332018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15053.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 389332018 is about 19731.4981184906. The cubic root of 389332018 is about 730.1969931860.

The spelling of 389332018 in words is "three hundred eighty-nine million, three hundred thirty-two thousand, eighteen".