389232489 has 16 divisors (see below), whose sum is σ = 534942720. Its totient is φ = 251556480.

The previous prime is 389232479. The next prime is 389232491. The reversal of 389232489 is 984232983.

It is not a de Polignac number, because 389232489 - 2²⁴ = 372455273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (389232409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24952 + ... + 37430.

It is an arithmetic number, because the mean of its divisors is an integer number (33433920).

Almost surely, 2^389232489 is an apocalyptic number.

It is an amenable number.

389232489 is a deficient number, since it is larger than the sum of its proper divisors (145710231).

389232489 is a wasteful number, since it uses less digits than its factorization.

389232489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12800.

The product of its digits is 746496, while the sum is 48.

The square root of 389232489 is about 19728.9758730655. The cubic root of 389232489 is about 730.1347652615.

The spelling of 389232489 in words is "three hundred eighty-nine million, two hundred thirty-two thousand, four hundred eighty-nine".