38911636 has 12 divisors (see below), whose sum is σ = 68319328. Its totient is φ = 19391832.

The previous prime is 38911633. The next prime is 38911661. The reversal of 38911636 is 63611983.

38911636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 38911595 and 38911604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38911633) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 14616 + ... + 17071.

Almost surely, 2^38911636 is an apocalyptic number.

It is an amenable number.

38911636 is a deficient number, since it is larger than the sum of its proper divisors (29407692).

38911636 is a wasteful number, since it uses less digits than its factorization.

38911636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31998 (or 31996 counting only the distinct ones).

The product of its digits is 23328, while the sum is 37.

The square root of 38911636 is about 6237.9192043501. The cubic root of 38911636 is about 338.8648301035.

The spelling of 38911636 in words is "thirty-eight million, nine hundred eleven thousand, six hundred thirty-six".