38729133 has 24 divisors (see below), whose sum is σ = 57919680. Its totient is φ = 24920640.

The previous prime is 38729107. The next prime is 38729161. The reversal of 38729133 is 33192783.

It is a happy number.

It is not a de Polignac number, because 38729133 - 2⁵ = 38729101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38729533) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37498 + ... + 38516.

It is an arithmetic number, because the mean of its divisors is an integer number (2413320).

Almost surely, 2^38729133 is an apocalyptic number.

It is an amenable number.

38729133 is a deficient number, since it is larger than the sum of its proper divisors (19190547).

38729133 is a wasteful number, since it uses less digits than its factorization.

38729133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1169 (or 1166 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 38729133 is about 6223.2734955166. The cubic root of 38729133 is about 338.3342194373.

The spelling of 38729133 in words is "thirty-eight million, seven hundred twenty-nine thousand, one hundred thirty-three".