12504432 has 40 divisors (see below), whose sum is σ = 34005760. Its totient is φ = 3948480.

The previous prime is 12504431. The next prime is 12504473. The reversal of 12504432 is 23440521.

It is a junction number, because it is equal to n+sod(n) for n = 12504399 and 12504408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12504431) 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, 5944 + ... + 7767.

It is an arithmetic number, because the mean of its divisors is an integer number (850144).

Almost surely, 2^12504432 is an apocalyptic number.

12504432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12504432 is an abundant number, since it is smaller than the sum of its proper divisors (21501328).

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

12504432 is a wasteful number, since it uses less digits than its factorization.

12504432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13741 (or 13735 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 12504432 is about 3536.1606298357. The cubic root of 12504432 is about 232.1068671352.

Adding to 12504432 its reverse (23440521), we get a palindrome (35944953).

The spelling of 12504432 in words is "twelve million, five hundred four thousand, four hundred thirty-two".