12028228 has 6 divisors (see below), whose sum is σ = 21049406. Its totient is φ = 6014112.

The previous prime is 12028213. The next prime is 12028249. The reversal of 12028228 is 82282021.

It can be written as a sum of positive squares in only one way, i.e., 8020224 + 4008004 = 2832^2 + 2002^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1503525 + ... + 1503532.

Almost surely, 2^12028228 is an apocalyptic number.

It is an amenable number.

12028228 is a deficient number, since it is larger than the sum of its proper divisors (9021178).

12028228 is a wasteful number, since it uses less digits than its factorization.

12028228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3007061 (or 3007059 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 12028228 is about 3468.1735827377. The cubic root of 12028228 is about 229.1222245647.

The spelling of 12028228 in words is "twelve million, twenty-eight thousand, two hundred twenty-eight".