29313128 has 16 divisors (see below), whose sum is σ = 59190180. Its totient is φ = 13529088.

The previous prime is 29313121. The next prime is 29313133. The reversal of 29313128 is 82131392.

29313128 is nontrivially palindromic in base 5.

It can be written as a sum of positive squares in 2 ways, for example, as 29138404 + 174724 = 5398^2 + 418^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 29313128.

It is not an unprimeable number, because it can be changed into a prime (29313121) 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, 140825 + ... + 141032.

Almost surely, 2^29313128 is an apocalyptic number.

It is an amenable number.

29313128 is an abundant number, since it is smaller than the sum of its proper divisors (29877052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

29313128 is a wasteful number, since it uses less digits than its factorization.

29313128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281876 (or 281872 counting only the distinct ones).

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

The square root of 29313128 is about 5414.1599533076. The cubic root of 29313128 is about 308.3335061763. Note that the first 3 decimals are identical.

The spelling of 29313128 in words is "twenty-nine million, three hundred thirteen thousand, one hundred twenty-eight".