389538285 has 16 divisors (see below), whose sum is σ = 656064960. Its totient is φ = 196819200.

The previous prime is 389538271. The next prime is 389538307. The reversal of 389538285 is 582835983.

It is not a de Polignac number, because 389538285 - 2⁸ = 389538029 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 683116 + ... + 683685.

It is an arithmetic number, because the mean of its divisors is an integer number (41004060).

Almost surely, 2^389538285 is an apocalyptic number.

It is an amenable number.

389538285 is a deficient number, since it is larger than the sum of its proper divisors (266526675).

389538285 is a wasteful number, since it uses less digits than its factorization.

389538285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1366828.

The product of its digits is 2073600, while the sum is 51.

The square root of 389538285 is about 19736.7242722798. The cubic root of 389538285 is about 730.3259225193.

The spelling of 389538285 in words is "three hundred eighty-nine million, five hundred thirty-eight thousand, two hundred eighty-five".