389813858 has 16 divisors (see below), whose sum is σ = 668532480. Its totient is φ = 166993056.

The previous prime is 389813857. The next prime is 389813869. The reversal of 389813858 is 858318983.

It is not an unprimeable number, because it can be changed into a prime (389813857) 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, 42638 + ... + 50966.

It is an arithmetic number, because the mean of its divisors is an integer number (41783280).

Almost surely, 2^389813858 is an apocalyptic number.

389813858 is a deficient number, since it is larger than the sum of its proper divisors (278718622).

389813858 is a wasteful number, since it uses less digits than its factorization.

389813858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11681.

The product of its digits is 1658880, while the sum is 53.

The square root of 389813858 is about 19743.7042623718. The cubic root of 389813858 is about 730.4981012865.

The spelling of 389813858 in words is "three hundred eighty-nine million, eight hundred thirteen thousand, eight hundred fifty-eight".