11198228 has 6 divisors (see below), whose sum is σ = 19596906. Its totient is φ = 5599112.

The previous prime is 11198227. The next prime is 11198249. The reversal of 11198228 is 82289111.

It can be written as a sum of positive squares in only one way, i.e., 8832784 + 2365444 = 2972^2 + 1538^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11198194 and 11198203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11198221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1399775 + ... + 1399782.

It is an arithmetic number, because the mean of its divisors is an integer number (3266151).

Almost surely, 2^11198228 is an apocalyptic number.

It is an amenable number.

11198228 is a deficient number, since it is larger than the sum of its proper divisors (8398678).

11198228 is a wasteful number, since it uses less digits than its factorization.

11198228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2799561 (or 2799559 counting only the distinct ones).

The product of its digits is 2304, while the sum is 32.

The square root of 11198228 is about 3346.3753525270. The cubic root of 11198228 is about 223.7259882891.

The spelling of 11198228 in words is "eleven million, one hundred ninety-eight thousand, two hundred twenty-eight".