38686568 has 8 divisors (see below), whose sum is σ = 72537330. Its totient is φ = 19343280.

The previous prime is 38686561. The next prime is 38686579. The reversal of 38686568 is 86568683.

38686568 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 23020804 + 15665764 = 4798^2 + 3958^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (38686561) 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 as a sum of consecutive naturals, namely, 2417903 + ... + 2417918.

Almost surely, 2^38686568 is an apocalyptic number.

It is an amenable number.

38686568 is a deficient number, since it is larger than the sum of its proper divisors (33850762).

38686568 is a wasteful number, since it uses less digits than its factorization.

38686568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4835827 (or 4835823 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 50.

The square root of 38686568 is about 6219.8527313756. The cubic root of 38686568 is about 338.2102259988.

The spelling of 38686568 in words is "thirty-eight million, six hundred eighty-six thousand, five hundred sixty-eight".