11189900 has 36 divisors (see below), whose sum is σ = 24477600. Its totient is φ = 4440000.

The previous prime is 11189869. The next prime is 11189903. The reversal of 11189900 is 998111.

It is not an unprimeable number, because it can be changed into a prime (11189903) 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 in 11 ways as a sum of consecutive naturals, for example, 14525 + ... + 15275.

Almost surely, 2^11189900 is an apocalyptic number.

11189900 is a gapful number since it is divisible by the number (10) 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 11189900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12238800).

11189900 is an abundant number, since it is smaller than the sum of its proper divisors (13287700).

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

11189900 is a wasteful number, since it uses less digits than its factorization.

11189900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914 (or 907 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 29.

The square root of 11189900 is about 3345.1307896703. The cubic root of 11189900 is about 223.6705136760.

The spelling of 11189900 in words is "eleven million, one hundred eighty-nine thousand, nine hundred".