29136228 has 48 divisors (see below), whose sum is σ = 74919936. Its totient is φ = 8739360.

The previous prime is 29136221. The next prime is 29136269. The reversal of 29136228 is 82263192.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (29136221) 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 15 ways as a sum of consecutive naturals, for example, 12525 + ... + 14667.

It is an arithmetic number, because the mean of its divisors is an integer number (1560832).

Almost surely, 2^29136228 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 29136228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37459968).

29136228 is an abundant number, since it is smaller than the sum of its proper divisors (45783708).

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

29136228 is a wasteful number, since it uses less digits than its factorization.

29136228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2264 (or 2262 counting only the distinct ones).

The product of its digits is 10368, while the sum is 33.

The square root of 29136228 is about 5397.7984401050. The cubic root of 29136228 is about 307.7120066170.

The spelling of 29136228 in words is "twenty-nine million, one hundred thirty-six thousand, two hundred twenty-eight".