38904190 has 32 divisors (see below), whose sum is σ = 76186656. Its totient is φ = 14217600.

The previous prime is 38904179. The next prime is 38904193. The reversal of 38904190 is 9140983.

38904190 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×38904190² = 3027071999112200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38904193) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 11649 + ... + 14611.

It is an arithmetic number, because the mean of its divisors is an integer number (2380833).

Almost surely, 2^38904190 is an apocalyptic number.

38904190 is a deficient number, since it is larger than the sum of its proper divisors (37282466).

38904190 is a wasteful number, since it uses less digits than its factorization.

With its successor (38904191) it forms an eRAP, since the sums of their prime factors are consecutive (3084 and 3085).

38904190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3084.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 38904190 is about 6237.3223421593. The cubic root of 38904190 is about 338.8432140460.

The spelling of 38904190 in words is "thirty-eight million, nine hundred four thousand, one hundred ninety".