38749556 has 6 divisors (see below), whose sum is σ = 67811730. Its totient is φ = 19374776.

The previous prime is 38749553. The next prime is 38749637. The reversal of 38749556 is 65594783.

38749556 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., 37625956 + 1123600 = 6134^2 + 1060^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 38749556.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38749553) by changing a digit.

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, 4843691 + ... + 4843698.

It is an arithmetic number, because the mean of its divisors is an integer number (11301955).

Almost surely, 2^38749556 is an apocalyptic number.

It is an amenable number.

38749556 is a deficient number, since it is larger than the sum of its proper divisors (29062174).

38749556 is a wasteful number, since it uses less digits than its factorization.

38749556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9687393 (or 9687391 counting only the distinct ones).

The product of its digits is 907200, while the sum is 47.

The square root of 38749556 is about 6224.9141359540. The cubic root of 38749556 is about 338.3936801499.

The spelling of 38749556 in words is "thirty-eight million, seven hundred forty-nine thousand, five hundred fifty-six".