12308432 has 20 divisors (see below), whose sum is σ = 23902116. Its totient is φ = 6140160.

The previous prime is 12308423. The next prime is 12308453. The reversal of 12308432 is 23480321.

It can be written as a sum of positive squares in 2 ways, for example, as 1784896 + 10523536 = 1336^2 + 3244^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12308398 and 12308407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12668 + ... + 13604.

Almost surely, 2^12308432 is an apocalyptic number.

It is an amenable number.

12308432 is a deficient number, since it is larger than the sum of its proper divisors (11593684).

12308432 is an equidigital number, since it uses as much as digits as its factorization.

12308432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1766 (or 1760 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 12308432 is about 3508.3374980181. The cubic root of 12308432 is about 230.8877599190.

Adding to 12308432 its reverse (23480321), we get a palindrome (35788753).

The spelling of 12308432 in words is "twelve million, three hundred eight thousand, four hundred thirty-two".