38893128 has 16 divisors (see below), whose sum is σ = 97232880. Its totient is φ = 12964368.

The previous prime is 38893123. The next prime is 38893163. The reversal of 38893128 is 82139883.

It is a self number, because there is not a number n which added to its sum of digits gives 38893128.

It is not an unprimeable number, because it can be changed into a prime (38893121) 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 3 ways as a sum of consecutive naturals, for example, 810250 + ... + 810297.

It is an arithmetic number, because the mean of its divisors is an integer number (6077055).

Almost surely, 2^38893128 is an apocalyptic number.

It is an amenable number.

38893128 is an abundant number, since it is smaller than the sum of its proper divisors (58339752).

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

38893128 is a wasteful number, since it uses less digits than its factorization.

38893128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1620556 (or 1620552 counting only the distinct ones).

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

The square root of 38893128 is about 6236.4355203914. The cubic root of 38893128 is about 338.8110954922.

The spelling of 38893128 in words is "thirty-eight million, eight hundred ninety-three thousand, one hundred twenty-eight".