389689544 has 16 divisors (see below), whose sum is σ = 769124400. Its totient is φ = 184589712.

The previous prime is 389689537. The next prime is 389689571. The reversal of 389689544 is 445986983.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 389689544.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1281722 + ... + 1282025.

It is an arithmetic number, because the mean of its divisors is an integer number (48070275).

Almost surely, 2^389689544 is an apocalyptic number.

It is an amenable number.

389689544 is a deficient number, since it is larger than the sum of its proper divisors (379434856).

389689544 is a wasteful number, since it uses less digits than its factorization.

389689544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2563772 (or 2563768 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 56.

The square root of 389689544 is about 19740.5558179095. Note that the first 3 decimals coincide. The cubic root of 389689544 is about 730.4204396075.

The spelling of 389689544 in words is "three hundred eighty-nine million, six hundred eighty-nine thousand, five hundred forty-four".