393000128 has 28 divisors (see below), whose sum is σ = 783153120. Its totient is φ = 195670272.

The previous prime is 393000109. The next prime is 393000133. The reversal of 393000128 is 821000393.

It is a junction number, because it is equal to n+sod(n) for n = 393000097 and 393000106.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2450 + ... + 28142.

Almost surely, 2^393000128 is an apocalyptic number.

It is an amenable number.

393000128 is a deficient number, since it is larger than the sum of its proper divisors (390152992).

393000128 is a wasteful number, since it uses less digits than its factorization.

393000128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25944 (or 25934 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 393000128 is about 19824.2308299717. The cubic root of 393000128 is about 732.4830239866.

The spelling of 393000128 in words is "three hundred ninety-three million, one hundred twenty-eight", and thus it is an aban number.