38644768 has 12 divisors (see below), whose sum is σ = 76081950. Its totient is φ = 19322368.

The previous prime is 38644759. The next prime is 38644769. The reversal of 38644768 is 86744683.

It can be written as a sum of positive squares in only one way, i.e., 33500944 + 5143824 = 5788^2 + 2268^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38644769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 603793 + ... + 603856.

Almost surely, 2^38644768 is an apocalyptic number.

It is an amenable number.

38644768 is a deficient number, since it is larger than the sum of its proper divisors (37437182).

38644768 is a wasteful number, since it uses less digits than its factorization.

38644768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1207659 (or 1207651 counting only the distinct ones).

The product of its digits is 774144, while the sum is 46.

The square root of 38644768 is about 6216.4916150510. The cubic root of 38644768 is about 338.0883724901.

It can be divided in two parts, 386 and 44768, that added together give a palindrome (45154).

The spelling of 38644768 in words is "thirty-eight million, six hundred forty-four thousand, seven hundred sixty-eight".