29128212 has 72 divisors (see below), whose sum is σ = 77715456. Its totient is φ = 9180864.

The previous prime is 29128207. The next prime is 29128219. The reversal of 29128212 is 21282192.

It is a super-3 number, since 3×29128212³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29128219) 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 23 ways as a sum of consecutive naturals, for example, 105018 + ... + 105294.

Almost surely, 2^29128212 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 29128212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38857728).

29128212 is an abundant number, since it is smaller than the sum of its proper divisors (48587244).

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

29128212 is a wasteful number, since it uses less digits than its factorization.

29128212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437 (or 432 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 29128212 is about 5397.0558640800. The cubic root of 29128212 is about 307.6837846421.

The spelling of 29128212 in words is "twenty-nine million, one hundred twenty-eight thousand, two hundred twelve".