38397656 has 24 divisors (see below), whose sum is σ = 79137660. Its totient is φ = 17453040.

The previous prime is 38397641. The next prime is 38397677. The reversal of 38397656 is 65679383.

38397656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 38397656.

It is a congruent number.

It is an unprimeable number.

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 in 5 ways as a sum of consecutive naturals, for example, 18866 + ... + 20801.

Almost surely, 2^38397656 is an apocalyptic number.

It is an amenable number.

38397656 is an abundant number, since it is smaller than the sum of its proper divisors (40740004).

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

38397656 is a wasteful number, since it uses less digits than its factorization.

38397656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39695 (or 39680 counting only the distinct ones).

The product of its digits is 816480, while the sum is 47.

The square root of 38397656 is about 6196.5842203588. The cubic root of 38397656 is about 337.3662013763.

The spelling of 38397656 in words is "thirty-eight million, three hundred ninety-seven thousand, six hundred fifty-six".