38689744 has 10 divisors (see below), whose sum is σ = 74961410. Its totient is φ = 19344864.

The previous prime is 38689733. The next prime is 38689751. The reversal of 38689744 is 44798683.

38689744 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 21049744 + 17640000 = 4588^2 + 4200^2 .

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 as a sum of consecutive naturals, namely, 1209039 + ... + 1209070.

It is an arithmetic number, because the mean of its divisors is an integer number (7496141).

Almost surely, 2^38689744 is an apocalyptic number.

It is an amenable number.

38689744 is a deficient number, since it is larger than the sum of its proper divisors (36271666).

38689744 is a wasteful number, since it uses less digits than its factorization.

38689744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2418117 (or 2418111 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 49.

The square root of 38689744 is about 6220.1080376469. The cubic root of 38689744 is about 338.2194809447.

The spelling of 38689744 in words is "thirty-eight million, six hundred eighty-nine thousand, seven hundred forty-four".