38684128 has 36 divisors (see below), whose sum is σ = 88597152. Its totient is φ = 16578240.

The previous prime is 38684099. The next prime is 38684143. The reversal of 38684128 is 82148683.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 10768 + ... + 13903.

It is an arithmetic number, because the mean of its divisors is an integer number (2461032).

Almost surely, 2^38684128 is an apocalyptic number.

It is an amenable number.

38684128 is an abundant number, since it is smaller than the sum of its proper divisors (49913024).

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

38684128 is a wasteful number, since it uses less digits than its factorization.

38684128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24695 (or 24680 counting only the distinct ones).

The product of its digits is 73728, while the sum is 40.

The square root of 38684128 is about 6219.6565821595. The cubic root of 38684128 is about 338.2031154318.

The spelling of 38684128 in words is "thirty-eight million, six hundred eighty-four thousand, one hundred twenty-eight".