11811044 has 24 divisors (see below), whose sum is σ = 23802240. Its totient is φ = 5023296.

The previous prime is 11811043. The next prime is 11811047. The reversal of 11811044 is 44011811.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (11811043) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2297 + ... + 5375.

It is an arithmetic number, because the mean of its divisors is an integer number (991760).

Almost surely, 2^11811044 is an apocalyptic number.

11811044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

11811044 is an abundant number, since it is smaller than the sum of its proper divisors (11991196).

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

11811044 is a wasteful number, since it uses less digits than its factorization.

11811044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3227 (or 3225 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

The square root of 11811044 is about 3436.7199478573. The cubic root of 11811044 is about 227.7348153135.

Adding to 11811044 its reverse (44011811), we get a palindrome (55822855).

The spelling of 11811044 in words is "eleven million, eight hundred eleven thousand, forty-four".