389745392 has 20 divisors (see below), whose sum is σ = 779491776. Its totient is φ = 188586240.

The previous prime is 389745379. The next prime is 389745407. The reversal of 389745392 is 293547983.

It is a happy number.

389745392 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 389745392.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 392393 + ... + 393384.

Almost surely, 2^389745392 is an apocalyptic number.

It is an amenable number.

389745392 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

389745392 is a wasteful number, since it uses less digits than its factorization.

389745392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785816 (or 785810 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 50.

The square root of 389745392 is about 19741.9703170682. The cubic root of 389745392 is about 730.4553311195.

The spelling of 389745392 in words is "three hundred eighty-nine million, seven hundred forty-five thousand, three hundred ninety-two".