38105885 has 4 divisors (see below), whose sum is σ = 45727068. Its totient is φ = 30484704.

The previous prime is 38105867. The next prime is 38105911. The reversal of 38105885 is 58850183.

38105885 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8631844 + 29474041 = 2938^2 + 5429^2 .

It is a cyclic number.

It is not a de Polignac number, because 38105885 - 2²⁰ = 37057309 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 3810584 + ... + 3810593.

It is an arithmetic number, because the mean of its divisors is an integer number (11431767).

Almost surely, 2^38105885 is an apocalyptic number.

It is an amenable number.

38105885 is a deficient number, since it is larger than the sum of its proper divisors (7621183).

38105885 is an equidigital number, since it uses as much as digits as its factorization.

38105885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7621182.

The product of its (nonzero) digits is 38400, while the sum is 38.

The square root of 38105885 is about 6172.9964360916. The cubic root of 38105885 is about 336.5095166750.

The spelling of 38105885 in words is "thirty-eight million, one hundred five thousand, eight hundred eighty-five".