12828228 has 24 divisors (see below), whose sum is σ = 34208832. Its totient is φ = 3665184.

The previous prime is 12828223. The next prime is 12828253. The reversal of 12828228 is 82282821.

12828228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×12828228³ (a number of 22 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (12828223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76275 + ... + 76442.

It is an arithmetic number, because the mean of its divisors is an integer number (1425368).

Almost surely, 2^12828228 is an apocalyptic number.

It is an amenable number.

12828228 is an abundant number, since it is smaller than the sum of its proper divisors (21380604).

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

12828228 is a wasteful number, since it uses less digits than its factorization.

12828228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152731 (or 152729 counting only the distinct ones).

The product of its digits is 8192, while the sum is 33.

The square root of 12828228 is about 3581.6515743439. The cubic root of 12828228 is about 234.0932494155.

The spelling of 12828228 in words is "twelve million, eight hundred twenty-eight thousand, two hundred twenty-eight".