12109344 has 96 divisors (see below), whose sum is σ = 35449344. Its totient is φ = 3594240.

The previous prime is 12109343. The next prime is 12109367. The reversal of 12109344 is 44390121.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×12109344² = 293272424220672, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (12109343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38532 + ... + 38844.

It is an arithmetic number, because the mean of its divisors is an integer number (369264).

Almost surely, 2^12109344 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 12109344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17724672).

12109344 is an abundant number, since it is smaller than the sum of its proper divisors (23340000).

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

12109344 is a wasteful number, since it uses less digits than its factorization.

12109344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370 (or 362 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 12109344 is about 3479.8482725544. The cubic root of 12109344 is about 229.6361227953.

Adding to 12109344 its reverse (44390121), we get a palindrome (56499465).

The spelling of 12109344 in words is "twelve million, one hundred nine thousand, three hundred forty-four".