389318544 has 30 divisors (see below), whose sum is σ = 1089551606. Its totient is φ = 129772800.

The previous prime is 389318543. The next prime is 389318593. The reversal of 389318544 is 445813983.

389318544 is a `hidden beast` number, since 3 + 8 + 93 + 18 + 544 = 666.

It can be written as a sum of positive squares in only one way, i.e., 252428544 + 136890000 = 15888^2 + 11700^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 389318544.

It is not an unprimeable number, because it can be changed into a prime (389318543) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 1351657 + ... + 1351944.

Almost surely, 2^389318544 is an apocalyptic number.

It is an amenable number.

389318544 is an abundant number, since it is smaller than the sum of its proper divisors (700233062).

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

389318544 is a wasteful number, since it uses less digits than its factorization.

389318544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2703615 (or 2703606 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 389318544 is about 19731.1566817559. The cubic root of 389318544 is about 730.1885695379.

The spelling of 389318544 in words is "three hundred eighty-nine million, three hundred eighteen thousand, five hundred forty-four".