38646544 has 10 divisors (see below), whose sum is σ = 74877710. Its totient is φ = 19323264.

The previous prime is 38646533. The next prime is 38646547. The reversal of 38646544 is 44564683.

It can be written as a sum of positive squares in only one way, i.e., 38588944 + 57600 = 6212^2 + 240^2 .

It is a junction number, because it is equal to n+sod(n) for n = 38646497 and 38646506.

It is not an unprimeable number, because it can be changed into a prime (38646547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1207689 + ... + 1207720.

It is an arithmetic number, because the mean of its divisors is an integer number (7487771).

Almost surely, 2^38646544 is an apocalyptic number.

It is an amenable number.

38646544 is a deficient number, since it is larger than the sum of its proper divisors (36231166).

38646544 is a wasteful number, since it uses less digits than its factorization.

38646544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2415417 (or 2415411 counting only the distinct ones).

The product of its digits is 276480, while the sum is 40.

The square root of 38646544 is about 6216.6344592553. The cubic root of 38646544 is about 338.0935515935.

The spelling of 38646544 in words is "thirty-eight million, six hundred forty-six thousand, five hundred forty-four".