38729612 has 12 divisors (see below), whose sum is σ = 67862256. Its totient is φ = 19340400.

The previous prime is 38729599. The next prime is 38729617. The reversal of 38729612 is 21692783.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (38729617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2264 + ... + 9087.

It is an arithmetic number, because the mean of its divisors is an integer number (5655188).

Almost surely, 2^38729612 is an apocalyptic number.

It is an amenable number.

38729612 is a deficient number, since it is larger than the sum of its proper divisors (29132644).

38729612 is a wasteful number, since it uses less digits than its factorization.

38729612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12208 (or 12206 counting only the distinct ones).

The product of its digits is 36288, while the sum is 38.

The square root of 38729612 is about 6223.3119799669. The cubic root of 38729612 is about 338.3356142652.

The spelling of 38729612 in words is "thirty-eight million, seven hundred twenty-nine thousand, six hundred twelve".