12505344 has 72 divisors (see below), whose sum is σ = 35075040. Its totient is φ = 3944448.

The previous prime is 12505331. The next prime is 12505357. The reversal of 12505344 is 44350521.

It is an interprime number because it is at equal distance from previous prime (12505331) and next prime (12505357).

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

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, 14164 + ... + 15020.

Almost surely, 2^12505344 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 12505344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17537520).

12505344 is an abundant number, since it is smaller than the sum of its proper divisors (22569696).

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

12505344 is an equidigital number, since it uses as much as digits as its factorization.

12505344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895 (or 881 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 12505344 is about 3536.2895809026. The cubic root of 12505344 is about 232.1125098363.

Adding to 12505344 its reverse (44350521), we get a palindrome (56855865).

The spelling of 12505344 in words is "twelve million, five hundred five thousand, three hundred forty-four".