389943502 has 24 divisors (see below), whose sum is σ = 642330000. Its totient is φ = 177428160.

The previous prime is 389943493. The next prime is 389943503. The reversal of 389943502 is 205349983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389943503) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15874 + ... + 32122.

It is an arithmetic number, because the mean of its divisors is an integer number (26763750).

Almost surely, 2^389943502 is an apocalyptic number.

389943502 is a deficient number, since it is larger than the sum of its proper divisors (252386498).

389943502 is a wasteful number, since it uses less digits than its factorization.

389943502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16348 (or 16335 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 43.

The square root of 389943502 is about 19746.9871626028. The cubic root of 389943502 is about 730.5790751470.

The spelling of 389943502 in words is "three hundred eighty-nine million, nine hundred forty-three thousand, five hundred two".