389638616 has 16 divisors (see below), whose sum is σ = 744357600. Its totient is φ = 191143264.

The previous prime is 389638573. The next prime is 389638619. The reversal of 389638616 is 616836983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389638619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 459056 + ... + 459903.

It is an arithmetic number, because the mean of its divisors is an integer number (46522350).

Almost surely, 2^389638616 is an apocalyptic number.

It is an amenable number.

389638616 is a deficient number, since it is larger than the sum of its proper divisors (354718984).

389638616 is a wasteful number, since it uses less digits than its factorization.

389638616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 919018 (or 919014 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 50.

The square root of 389638616 is about 19739.2658424775. The cubic root of 389638616 is about 730.3886190012.

The spelling of 389638616 in words is "three hundred eighty-nine million, six hundred thirty-eight thousand, six hundred sixteen".