123456228 has 24 divisors (see below), whose sum is σ = 329216832. Its totient is φ = 35273184.

The previous prime is 123456211. The next prime is 123456247. The reversal of 123456228 is 822654321.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 734775 + ... + 734942.

It is an arithmetic number, because the mean of its divisors is an integer number (13717368).

Almost surely, 2^123456228 is an apocalyptic number.

It is an amenable number.

123456228 is an abundant number, since it is smaller than the sum of its proper divisors (205760604).

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

123456228 is a wasteful number, since it uses less digits than its factorization.

123456228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1469731 (or 1469729 counting only the distinct ones).

The product of its digits is 23040, while the sum is 33.

The square root of 123456228 is about 11111.0858155268. The cubic root of 123456228 is about 497.9331049966.

The spelling of 123456228 in words is "one hundred twenty-three million, four hundred fifty-six thousand, two hundred twenty-eight".