389892992 has 16 divisors (see below), whose sum is σ = 776740200. Its totient is φ = 194946432.

The previous prime is 389892991. The next prime is 389893019. The reversal of 389892992 is 299298983.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389892991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1522892 + ... + 1523147.

Almost surely, 2^389892992 is an apocalyptic number.

389892992 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

389892992 is a deficient number, since it is larger than the sum of its proper divisors (386847208).

389892992 is an equidigital number, since it uses as much as digits as its factorization.

389892992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3046053 (or 3046041 counting only the distinct ones).

The product of its digits is 5038848, while the sum is 59.

The square root of 389892992 is about 19745.7081919084. The cubic root of 389892992 is about 730.5475294296.

The spelling of 389892992 in words is "three hundred eighty-nine million, eight hundred ninety-two thousand, nine hundred ninety-two".