38121188 has 12 divisors (see below), whose sum is σ = 76242432. Its totient is φ = 16337640.

The previous prime is 38121121. The next prime is 38121197. The reversal of 38121188 is 88112183.

It is a happy number.

38121188 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

38121188 is an admirable number.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 680708 + ... + 680763.

It is an arithmetic number, because the mean of its divisors is an integer number (6353536).

Almost surely, 2^38121188 is an apocalyptic number.

It is an amenable number.

38121188 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

38121188 is a wasteful number, since it uses less digits than its factorization.

38121188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1361482 (or 1361480 counting only the distinct ones).

The product of its digits is 3072, while the sum is 32.

The square root of 38121188 is about 6174.2358231606. The cubic root of 38121188 is about 336.5545571015.

The spelling of 38121188 in words is "thirty-eight million, one hundred twenty-one thousand, one hundred eighty-eight".