29122912 has 96 divisors (see below), whose sum is σ = 72055872. Its totient is φ = 11280384.

The previous prime is 29122909. The next prime is 29122913. The reversal of 29122912 is 21922192.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29122913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 212508 + ... + 212644.

It is an arithmetic number, because the mean of its divisors is an integer number (750582).

Almost surely, 2^29122912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29122912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36027936).

29122912 is an abundant number, since it is smaller than the sum of its proper divisors (42932960).

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

29122912 is a wasteful number, since it uses less digits than its factorization.

29122912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240 (or 232 counting only the distinct ones).

The product of its digits is 1296, while the sum is 28.

The square root of 29122912 is about 5396.5648332990. The cubic root of 29122912 is about 307.6651220597.

The spelling of 29122912 in words is "twenty-nine million, one hundred twenty-two thousand, nine hundred twelve".