11109198 has 32 divisors (see below), whose sum is σ = 22855680. Its totient is φ = 3598560.

The previous prime is 11109187. The next prime is 11109223. The reversal of 11109198 is 89190111.

It is a happy number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 46363 + ... + 46601.

It is an arithmetic number, because the mean of its divisors is an integer number (714240).

Almost surely, 2^11109198 is an apocalyptic number.

11109198 is an abundant number, since it is smaller than the sum of its proper divisors (11746482).

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

11109198 is a wasteful number, since it uses less digits than its factorization.

11109198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432.

The product of its (nonzero) digits is 648, while the sum is 30.

The square root of 11109198 is about 3333.0463543131. The cubic root of 11109198 is about 223.1315089628.

The spelling of 11109198 in words is "eleven million, one hundred nine thousand, one hundred ninety-eight".