11389144 has 32 divisors (see below), whose sum is σ = 23567040. Its totient is φ = 5126400.

The previous prime is 11389097. The next prime is 11389153. The reversal of 11389144 is 44198311.

11389144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a nialpdrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2929 + ... + 5599.

It is an arithmetic number, because the mean of its divisors is an integer number (736470).

Almost surely, 2^11389144 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 11389144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11783520).

11389144 is an abundant number, since it is smaller than the sum of its proper divisors (12177896).

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

11389144 is a wasteful number, since it uses less digits than its factorization.

11389144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2731 (or 2727 counting only the distinct ones).

The product of its digits is 3456, while the sum is 31.

The square root of 11389144 is about 3374.7805854603. The cubic root of 11389144 is about 224.9902481370.

The spelling of 11389144 in words is "eleven million, three hundred eighty-nine thousand, one hundred forty-four".