38805668 has 18 divisors (see below), whose sum is σ = 74645718. Its totient is φ = 17638720.

The previous prime is 38805667. The next prime is 38805677. The reversal of 38805668 is 86650883.

It can be written as a sum of positive squares in only one way, i.e., 31719424 + 7086244 = 5632^2 + 2662^2 .

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (38805667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39605 + ... + 40572.

Almost surely, 2^38805668 is an apocalyptic number.

It is an amenable number.

38805668 is a deficient number, since it is larger than the sum of its proper divisors (35840050).

38805668 is a wasteful number, since it uses less digits than its factorization.

38805668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80203 (or 80190 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 44.

The square root of 38805668 is about 6229.4195556247. The cubic root of 38805668 is about 338.5569404143.

The spelling of 38805668 in words is "thirty-eight million, eight hundred five thousand, six hundred sixty-eight".