38989660 has 24 divisors (see below), whose sum is σ = 82918080. Its totient is φ = 15397824.

The previous prime is 38989651. The next prime is 38989663. The reversal of 38989660 is 6698983.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38989663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10759 + ... + 13918.

It is an arithmetic number, because the mean of its divisors is an integer number (3454920).

Almost surely, 2^38989660 is an apocalyptic number.

It is an amenable number.

38989660 is an abundant number, since it is smaller than the sum of its proper divisors (43928420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38989660 is a wasteful number, since it uses less digits than its factorization.

38989660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24765 (or 24763 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 49.

The square root of 38989660 is about 6244.1700809635. The cubic root of 38989660 is about 339.0911714589.

The spelling of 38989660 in words is "thirty-eight million, nine hundred eighty-nine thousand, six hundred sixty".