11028228 has 12 divisors (see below), whose sum is σ = 25732560. Its totient is φ = 3676072.

The previous prime is 11028211. The next prime is 11028239. The reversal of 11028228 is 82282011.

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 = 11028198 and 11028207.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 459498 + ... + 459521.

It is an arithmetic number, because the mean of its divisors is an integer number (2144380).

Almost surely, 2^11028228 is an apocalyptic number.

It is an amenable number.

11028228 is an abundant number, since it is smaller than the sum of its proper divisors (14704332).

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

11028228 is a wasteful number, since it uses less digits than its factorization.

11028228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 919026 (or 919024 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 24.

The square root of 11028228 is about 3320.8775948535. The cubic root of 11028228 is about 222.5880844693.

The spelling of 11028228 in words is "eleven million, twenty-eight thousand, two hundred twenty-eight".