38989724 has 12 divisors (see below), whose sum is σ = 68691000. Its totient is φ = 19363728.

The previous prime is 38989711. The next prime is 38989733. The reversal of 38989724 is 42798983.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32114 + ... + 33305.

It is an arithmetic number, because the mean of its divisors is an integer number (5724250).

Almost surely, 2^38989724 is an apocalyptic number.

It is an amenable number.

38989724 is a deficient number, since it is larger than the sum of its proper divisors (29701276).

38989724 is a wasteful number, since it uses less digits than its factorization.

38989724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65572 (or 65570 counting only the distinct ones).

The product of its digits is 870912, while the sum is 50.

The square root of 38989724 is about 6244.1752057417. The cubic root of 38989724 is about 339.0913569938.

The spelling of 38989724 in words is "thirty-eight million, nine hundred eighty-nine thousand, seven hundred twenty-four".