38861139 has 16 divisors (see below), whose sum is σ = 52828928. Its totient is φ = 25404192.

The previous prime is 38861113. The next prime is 38861171. The reversal of 38861139 is 93116883.

38861139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 38861139 - 2⁵ = 38861107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38861097 and 38861106.

It is not an unprimeable number, because it can be changed into a prime (38861239) 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, 79554 + ... + 80040.

It is an arithmetic number, because the mean of its divisors is an integer number (3301808).

Almost surely, 2^38861139 is an apocalyptic number.

38861139 is a deficient number, since it is larger than the sum of its proper divisors (13967789).

38861139 is a wasteful number, since it uses less digits than its factorization.

38861139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954.

The product of its digits is 31104, while the sum is 39.

The square root of 38861139 is about 6233.8703066394. The cubic root of 38861139 is about 338.7181810411.

The spelling of 38861139 in words is "thirty-eight million, eight hundred sixty-one thousand, one hundred thirty-nine".