11188044 has 60 divisors (see below), whose sum is σ = 33432784. Its totient is φ = 3195936.

The previous prime is 11188033. The next prime is 11188049. The reversal of 11188044 is 44088111.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 11187999 and 11188017.

It is not an unprimeable number, because it can be changed into a prime (11188049) 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 19 ways as a sum of consecutive naturals, for example, 199 + ... + 4734.

Almost surely, 2^11188044 is an apocalyptic number.

11188044 is a gapful number since it is divisible by the number (14) 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 11188044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16716392).

11188044 is an abundant number, since it is smaller than the sum of its proper divisors (22244740).

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

11188044 is a wasteful number, since it uses less digits than its factorization.

11188044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4956 (or 4945 counting only the distinct ones).

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

The square root of 11188044 is about 3344.8533600145. The cubic root of 11188044 is about 223.6581467073.

The spelling of 11188044 in words is "eleven million, one hundred eighty-eight thousand, forty-four".