389285385 has 8 divisors (see below), whose sum is σ = 622856640. Its totient is φ = 207618864.

The previous prime is 389285381. The next prime is 389285387. The reversal of 389285385 is 583582983.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 389285385 - 2² = 389285381 is a prime.

It is a super-2 number, since 2×389285385² = 303086221949196450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (389285381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12976165 + ... + 12976194.

It is an arithmetic number, because the mean of its divisors is an integer number (77857080).

Almost surely, 2^389285385 is an apocalyptic number.

It is an amenable number.

389285385 is a deficient number, since it is larger than the sum of its proper divisors (233571255).

389285385 is a wasteful number, since it uses less digits than its factorization.

389285385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25952367.

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

The square root of 389285385 is about 19730.3163938139. The cubic root of 389285385 is about 730.1678384334.

The spelling of 389285385 in words is "three hundred eighty-nine million, two hundred eighty-five thousand, three hundred eighty-five".