38649392 has 20 divisors (see below), whose sum is σ = 75005616. Its totient is φ = 19293120.

The previous prime is 38649383. The next prime is 38649397. The reversal of 38649392 is 29394683.

38649392 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (38649397) 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, 10517 + ... + 13707.

Almost surely, 2^38649392 is an apocalyptic number.

It is an amenable number.

38649392 is a deficient number, since it is larger than the sum of its proper divisors (36356224).

38649392 is a wasteful number, since it uses less digits than its factorization.

38649392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3956 (or 3950 counting only the distinct ones).

The product of its digits is 279936, while the sum is 44.

The square root of 38649392 is about 6216.8635178842. The cubic root of 38649392 is about 338.1018564912.

The spelling of 38649392 in words is "thirty-eight million, six hundred forty-nine thousand, three hundred ninety-two".