389889208 has 16 divisors (see below), whose sum is σ = 735129000. Its totient is φ = 193854816.

The previous prime is 389889197. The next prime is 389889229. The reversal of 389889208 is 802988983.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134703 + ... + 137566.

Almost surely, 2^389889208 is an apocalyptic number.

It is an amenable number.

389889208 is a deficient number, since it is larger than the sum of its proper divisors (345239792).

389889208 is a wasteful number, since it uses less digits than its factorization.

389889208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272454 (or 272450 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 55.

The square root of 389889208 is about 19745.6123733856. The cubic root of 389889208 is about 730.5451660454.

The spelling of 389889208 in words is "three hundred eighty-nine million, eight hundred eighty-nine thousand, two hundred eight".