29138836 has 12 divisors (see below), whose sum is σ = 51754528. Its totient is φ = 14351832.

The previous prime is 29138807. The next prime is 29138839. The reversal of 29138836 is 63883192.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29138839) 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, 54096 + ... + 54631.

Almost surely, 2^29138836 is an apocalyptic number.

It is an amenable number.

29138836 is a deficient number, since it is larger than the sum of its proper divisors (22615692).

29138836 is a wasteful number, since it uses less digits than its factorization.

29138836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108798 (or 108796 counting only the distinct ones).

The product of its digits is 62208, while the sum is 40.

The square root of 29138836 is about 5398.0400146720. The cubic root of 29138836 is about 307.7211875008.

The spelling of 29138836 in words is "twenty-nine million, one hundred thirty-eight thousand, eight hundred thirty-six".