11913044 has 48 divisors (see below), whose sum is σ = 24978240. Its totient is φ = 4899840.

The previous prime is 11913023. The next prime is 11913047. The reversal of 11913044 is 44031911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11913047) 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 15 ways as a sum of consecutive naturals, for example, 33572 + ... + 33924.

It is an arithmetic number, because the mean of its divisors is an integer number (520380).

Almost surely, 2^11913044 is an apocalyptic number.

It is an amenable number.

11913044 is an abundant number, since it is smaller than the sum of its proper divisors (13065196).

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

11913044 is a wasteful number, since it uses less digits than its factorization.

11913044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440 (or 438 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 11913044 is about 3451.5277776660. The cubic root of 11913044 is about 228.3885086380.

Adding to 11913044 its reverse (44031911), we get a palindrome (55944955).

The spelling of 11913044 in words is "eleven million, nine hundred thirteen thousand, forty-four".