389791168 has 28 divisors (see below), whose sum is σ = 832993000. Its totient is φ = 179903232.

The previous prime is 389791153. The next prime is 389791177. The reversal of 389791168 is 861197983.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 233418 + ... + 235081.

It is an arithmetic number, because the mean of its divisors is an integer number (29749750).

Almost surely, 2^389791168 is an apocalyptic number.

It is an amenable number.

389791168 is an abundant number, since it is smaller than the sum of its proper divisors (443201832).

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

389791168 is a wasteful number, since it uses less digits than its factorization.

389791168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468524 (or 468514 counting only the distinct ones).

The product of its digits is 653184, while the sum is 52.

The square root of 389791168 is about 19743.1296404597. The cubic root of 389791168 is about 730.4839275784.

The spelling of 389791168 in words is "three hundred eighty-nine million, seven hundred ninety-one thousand, one hundred sixty-eight".