389558385 has 24 divisors (see below), whose sum is σ = 693487080. Its totient is φ = 202148352.

The previous prime is 389558381. The next prime is 389558399. The reversal of 389558385 is 583855983.

389558385 is a `hidden beast` number, since 3 + 8 + 9 + 558 + 3 + 85 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 142062561 + 247495824 = 11919^2 + 15732^2 .

It is not a de Polignac number, because 389558385 - 2² = 389558381 is a prime.

It is not an unprimeable number, because it can be changed into a prime (389558381) 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 23 ways as a sum of consecutive naturals, for example, 115320 + ... + 118649.

It is an arithmetic number, because the mean of its divisors is an integer number (28895295).

Almost surely, 2^389558385 is an apocalyptic number.

It is an amenable number.

389558385 is a deficient number, since it is larger than the sum of its proper divisors (303928695).

389558385 is a wasteful number, since it uses less digits than its factorization.

389558385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234017 (or 234014 counting only the distinct ones).

The product of its digits is 5184000, while the sum is 54.

The square root of 389558385 is about 19737.2334687514. The cubic root of 389558385 is about 730.3384837994.

The spelling of 389558385 in words is "three hundred eighty-nine million, five hundred fifty-eight thousand, three hundred eighty-five".