12456228 has 12 divisors (see below), whose sum is σ = 29064560. Its totient is φ = 4152072.

The previous prime is 12456221. The next prime is 12456253. The reversal of 12456228 is 82265421.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 12456195 and 12456204.

It is not an unprimeable number, because it can be changed into a prime (12456221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 518998 + ... + 519021.

Almost surely, 2^12456228 is an apocalyptic number.

It is an amenable number.

12456228 is an abundant number, since it is smaller than the sum of its proper divisors (16608332).

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

12456228 is a wasteful number, since it uses less digits than its factorization.

12456228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038026 (or 1038024 counting only the distinct ones).

The product of its digits is 7680, while the sum is 30.

The square root of 12456228 is about 3529.3381815859. The cubic root of 12456228 is about 231.8082293585.

The spelling of 12456228 in words is "twelve million, four hundred fifty-six thousand, two hundred twenty-eight".