12428227 has 8 divisors (see below), whose sum is σ = 14364000. Its totient is φ = 10532544.

The previous prime is 12428219. The next prime is 12428233. The reversal of 12428227 is 72282421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12428227 - 2³ = 12428219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12428195 and 12428204.

It is not an unprimeable number, because it can be changed into a prime (12428237) 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, 9352 + ... + 10597.

It is an arithmetic number, because the mean of its divisors is an integer number (1795500).

Almost surely, 2^12428227 is an apocalyptic number.

12428227 is a deficient number, since it is larger than the sum of its proper divisors (1935773).

12428227 is an equidigital number, since it uses as much as digits as its factorization.

12428227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20045.

The product of its digits is 3584, while the sum is 28.

The square root of 12428227 is about 3525.3690586944. The cubic root of 12428227 is about 231.6344011330.

The spelling of 12428227 in words is "twelve million, four hundred twenty-eight thousand, two hundred twenty-seven".