38123986 has 16 divisors (see below), whose sum is σ = 60629760. Its totient is φ = 17947440.

The previous prime is 38123983. The next prime is 38123999. The reversal of 38123986 is 68932183.

38123986 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (38123983) 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 7 ways as a sum of consecutive naturals, for example, 6016 + ... + 10603.

It is an arithmetic number, because the mean of its divisors is an integer number (3789360).

Almost surely, 2^38123986 is an apocalyptic number.

38123986 is a deficient number, since it is larger than the sum of its proper divisors (22505774).

38123986 is a wasteful number, since it uses less digits than its factorization.

38123986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16689.

The product of its digits is 62208, while the sum is 40.

The square root of 38123986 is about 6174.4624057484. The cubic root of 38123986 is about 336.5627909881.

The spelling of 38123986 in words is "thirty-eight million, one hundred twenty-three thousand, nine hundred eighty-six".