38661172 has 12 divisors (see below), whose sum is σ = 73807776. Its totient is φ = 17573240.

The previous prime is 38661157. The next prime is 38661199. The reversal of 38661172 is 27116683.

38661172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 439288 + ... + 439375.

It is an arithmetic number, because the mean of its divisors is an integer number (6150648).

Almost surely, 2^38661172 is an apocalyptic number.

It is an amenable number.

38661172 is a deficient number, since it is larger than the sum of its proper divisors (35146604).

38661172 is a wasteful number, since it uses less digits than its factorization.

38661172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878678 (or 878676 counting only the distinct ones).

The product of its digits is 12096, while the sum is 34.

The square root of 38661172 is about 6217.8108687865. The cubic root of 38661172 is about 338.1362031746.

It can be divided in two parts, 386611 and 72, that added together give a palindrome (386683).

The spelling of 38661172 in words is "thirty-eight million, six hundred sixty-one thousand, one hundred seventy-two".