11148228 has 144 divisors (see below), whose sum is σ = 35957376. Its totient is φ = 2833920.

The previous prime is 11148199. The next prime is 11148233. The reversal of 11148228 is 82284111.

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 in 47 ways as a sum of consecutive naturals, for example, 134275 + ... + 134357.

It is an arithmetic number, because the mean of its divisors is an integer number (249704).

Almost surely, 2^11148228 is an apocalyptic number.

11148228 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11148228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17978688).

11148228 is an abundant number, since it is smaller than the sum of its proper divisors (24809148).

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

11148228 is a wasteful number, since it uses less digits than its factorization.

11148228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154 (or 149 counting only the distinct ones).

The product of its digits is 1024, while the sum is 27.

The square root of 11148228 is about 3338.8962248024. The cubic root of 11148228 is about 223.3925132147.

The spelling of 11148228 in words is "eleven million, one hundred forty-eight thousand, two hundred twenty-eight".