38839128 has 32 divisors (see below), whose sum is σ = 97297200. Its totient is φ = 12919808.

The previous prime is 38839123. The next prime is 38839147. The reversal of 38839128 is 82193883.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 38839128.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38839121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12868 + ... + 15596.

Almost surely, 2^38839128 is an apocalyptic number.

It is an amenable number.

38839128 is an abundant number, since it is smaller than the sum of its proper divisors (58458072).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38839128 is a wasteful number, since it uses less digits than its factorization.

38839128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3331 (or 3327 counting only the distinct ones).

The product of its digits is 82944, while the sum is 42.

The square root of 38839128 is about 6232.1046204312. The cubic root of 38839128 is about 338.6542188231.

The spelling of 38839128 in words is "thirty-eight million, eight hundred thirty-nine thousand, one hundred twenty-eight".