29213228 has 12 divisors (see below), whose sum is σ = 55770792. Its totient is φ = 13278720.

The previous prime is 29213207. The next prime is 29213231. The reversal of 29213228 is 82231292.

It is a self number, because there is not a number n which added to its sum of digits gives 29213228.

It is an unprimeable number.

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, 331925 + ... + 332012.

It is an arithmetic number, because the mean of its divisors is an integer number (4647566).

Almost surely, 2^29213228 is an apocalyptic number.

It is an amenable number.

29213228 is a deficient number, since it is larger than the sum of its proper divisors (26557564).

29213228 is a wasteful number, since it uses less digits than its factorization.

29213228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663952 (or 663950 counting only the distinct ones).

The product of its digits is 3456, while the sum is 29.

The square root of 29213228 is about 5404.9262714675. The cubic root of 29213228 is about 307.9828376337.

The spelling of 29213228 in words is "twenty-nine million, two hundred thirteen thousand, two hundred twenty-eight".