389073924 has 18 divisors (see below), whose sum is σ = 983492510. Its totient is φ = 129691296.

The previous prime is 389073877. The next prime is 389073941. The reversal of 389073924 is 429370983.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 388484100 + 589824 = 19710^2 + 768^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 389073924.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5403769 + ... + 5403840.

Almost surely, 2^389073924 is an apocalyptic number.

It is an amenable number.

389073924 is an abundant number, since it is smaller than the sum of its proper divisors (594418586).

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

389073924 is a wasteful number, since it uses less digits than its factorization.

389073924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10807619 (or 10807614 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 389073924 is about 19724.9568820822. The cubic root of 389073924 is about 730.0356046936.

The spelling of 389073924 in words is "three hundred eighty-nine million, seventy-three thousand, nine hundred twenty-four".