11439744 has 64 divisors (see below), whose sum is σ = 31399680. Its totient is φ = 3690240.

The previous prime is 11439731. The next prime is 11439749. The reversal of 11439744 is 44793411.

It is a tau number, because it is divible by the number of its divisors (64).

Its product of digits (12096) is a multiple of the sum of its prime divisors (36).

It is not an unprimeable number, because it can be changed into a prime (11439749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 369009 + ... + 369039.

It is an arithmetic number, because the mean of its divisors is an integer number (490620).

Almost surely, 2^11439744 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 11439744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15699840).

11439744 is an abundant number, since it is smaller than the sum of its proper divisors (19959936).

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

11439744 is an frugal number, since it uses more digits than its factorization.

11439744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110 (or 36 counting only the distinct ones).

The product of its digits is 12096, while the sum is 33.

The square root of 11439744 is about 3382.2690608525. The cubic root of 11439744 is about 225.3229535112.

The spelling of 11439744 in words is "eleven million, four hundred thirty-nine thousand, seven hundred forty-four".