38779868 has 12 divisors (see below), whose sum is σ = 68878152. Its totient is φ = 19100400.

The previous prime is 38779849. The next prime is 38779877. The reversal of 38779868 is 86897783.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72083 + ... + 72618.

It is an arithmetic number, because the mean of its divisors is an integer number (5739846).

Almost surely, 2^38779868 is an apocalyptic number.

It is an amenable number.

38779868 is a deficient number, since it is larger than the sum of its proper divisors (30098284).

38779868 is a wasteful number, since it uses less digits than its factorization.

38779868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144772 (or 144770 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 56.

The square root of 38779868 is about 6227.3483923738. The cubic root of 38779868 is about 338.4818937694.

The spelling of 38779868 in words is "thirty-eight million, seven hundred seventy-nine thousand, eight hundred sixty-eight".