29321138 has 32 divisors (see below), whose sum is σ = 56014848. Its totient is φ = 11178000.

The previous prime is 29321111. The next prime is 29321167. The reversal of 29321138 is 83112392.

It is a self number, because there is not a number n which added to its sum of digits gives 29321138.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5213 + ... + 9263.

It is an arithmetic number, because the mean of its divisors is an integer number (1750464).

Almost surely, 2^29321138 is an apocalyptic number.

29321138 is a deficient number, since it is larger than the sum of its proper divisors (26693710).

29321138 is a wasteful number, since it uses less digits than its factorization.

29321138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4118.

The product of its digits is 2592, while the sum is 29.

The square root of 29321138 is about 5414.8996297254. The cubic root of 29321138 is about 308.3615883205.

The spelling of 29321138 in words is "twenty-nine million, three hundred twenty-one thousand, one hundred thirty-eight".