12445344 has 72 divisors (see below), whose sum is σ = 35904960. Its totient is φ = 4088448.

The previous prime is 12445339. The next prime is 12445351. The reversal of 12445344 is 44354421.

It is a happy number.

12445344 is a `hidden beast` number, since 124 + 4 + 534 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 22479 + ... + 23025.

It is an arithmetic number, because the mean of its divisors is an integer number (498680).

Almost surely, 2^12445344 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 12445344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17952480).

12445344 is an abundant number, since it is smaller than the sum of its proper divisors (23459616).

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

12445344 is a wasteful number, since it uses less digits than its factorization.

12445344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642 (or 631 counting only the distinct ones).

The product of its digits is 7680, while the sum is 27.

The square root of 12445344 is about 3527.7959124643. The cubic root of 12445344 is about 231.7406932372.

Adding to 12445344 its reverse (44354421), we get a palindrome (56799765).

The spelling of 12445344 in words is "twelve million, four hundred forty-five thousand, three hundred forty-four".