389506768 has 40 divisors (see below), whose sum is σ = 864587520. Its totient is φ = 166523520.

The previous prime is 389506763. The next prime is 389506769. The reversal of 389506768 is 867605983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389506763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44238 + ... + 52306.

It is an arithmetic number, because the mean of its divisors is an integer number (21614688).

Almost surely, 2^389506768 is an apocalyptic number.

It is an amenable number.

389506768 is an abundant number, since it is smaller than the sum of its proper divisors (475080752).

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

389506768 is a wasteful number, since it uses less digits than its factorization.

389506768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8515 (or 8509 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 52.

The square root of 389506768 is about 19735.9258206956. The cubic root of 389506768 is about 730.3062254370.

The spelling of 389506768 in words is "three hundred eighty-nine million, five hundred six thousand, seven hundred sixty-eight".