11538944 has 40 divisors (see below), whose sum is σ = 23831808. Its totient is φ = 5575680.

The previous prime is 11538911. The next prime is 11538953. The reversal of 11538944 is 44983511.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15509 + ... + 16235.

Almost surely, 2^11538944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11538944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11915904).

11538944 is an abundant number, since it is smaller than the sum of its proper divisors (12292864).

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

11538944 is an frugal number, since it uses more digits than its factorization.

11538944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776 (or 760 counting only the distinct ones).

The product of its digits is 17280, while the sum is 35.

The square root of 11538944 is about 3396.9021181070. The cubic root of 11538944 is about 225.9723776510.

The spelling of 11538944 in words is "eleven million, five hundred thirty-eight thousand, nine hundred forty-four".