389920104 has 96 divisors (see below), whose sum is σ = 1259406720. Its totient is φ = 106558848.

The previous prime is 389920057. The next prime is 389920123. The reversal of 389920104 is 401029983.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5227 + ... + 28410.

It is an arithmetic number, because the mean of its divisors is an integer number (13118820).

Almost surely, 2^389920104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 389920104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (629703360).

389920104 is an abundant number, since it is smaller than the sum of its proper divisors (869486616).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

389920104 is a wasteful number, since it uses less digits than its factorization.

389920104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33679 (or 33672 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 389920104 is about 19746.3947089083. The cubic root of 389920104 is about 730.5644624052.

The spelling of 389920104 in words is "three hundred eighty-nine million, nine hundred twenty thousand, one hundred four".