12508432 has 20 divisors (see below), whose sum is σ = 24529680. Its totient is φ = 6178208.

The previous prime is 12508421. The next prime is 12508453. The reversal of 12508432 is 23480521.

It is a junction number, because it is equal to n+sod(n) for n = 12508397 and 12508406.

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 3 ways as a sum of consecutive naturals, for example, 3382 + ... + 6037.

It is an arithmetic number, because the mean of its divisors is an integer number (1226484).

Almost surely, 2^12508432 is an apocalyptic number.

It is an amenable number.

12508432 is a deficient number, since it is larger than the sum of its proper divisors (12021248).

12508432 is an equidigital number, since it uses as much as digits as its factorization.

12508432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9510 (or 9504 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 12508432 is about 3536.7261697791. The cubic root of 12508432 is about 232.1316137874.

Adding to 12508432 its reverse (23480521), we get a palindrome (35988953).

The spelling of 12508432 in words is "twelve million, five hundred eight thousand, four hundred thirty-two".