389126128 has 10 divisors (see below), whose sum is σ = 753931904. Its totient is φ = 194563056.

The previous prime is 389126117. The next prime is 389126183. The reversal of 389126128 is 821621983.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12160176 + ... + 12160207.

Almost surely, 2^389126128 is an apocalyptic number.

It is an amenable number.

389126128 is a deficient number, since it is larger than the sum of its proper divisors (364805776).

389126128 is a wasteful number, since it uses less digits than its factorization.

389126128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24320391 (or 24320385 counting only the distinct ones).

The product of its digits is 41472, while the sum is 40.

The square root of 389126128 is about 19726.2801358999. The cubic root of 389126128 is about 730.0682540798.

The spelling of 389126128 in words is "three hundred eighty-nine million, one hundred twenty-six thousand, one hundred twenty-eight".