389933902 has 8 divisors (see below), whose sum is σ = 597345696. Its totient is φ = 190818672.

The previous prime is 389933897. The next prime is 389933909. The reversal of 389933902 is 209339983.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389933909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2074023 + ... + 2074210.

It is an arithmetic number, because the mean of its divisors is an integer number (74668212).

Almost surely, 2^389933902 is an apocalyptic number.

389933902 is a deficient number, since it is larger than the sum of its proper divisors (207411794).

389933902 is a wasteful number, since it uses less digits than its factorization.

389933902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4148282.

The product of its (nonzero) digits is 314928, while the sum is 46.

The square root of 389933902 is about 19746.7440860512. The cubic root of 389933902 is about 730.5730797343.

The spelling of 389933902 in words is "three hundred eighty-nine million, nine hundred thirty-three thousand, nine hundred two".