12432449 has 2 divisors, whose sum is σ = 12432450. Its totient is φ = 12432448.

The previous prime is 12432391. The next prime is 12432493. The reversal of 12432449 is 94423421.

12432449 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7840000 + 4592449 = 2800^2 + 2143^2 .

It is an emirp because it is prime and its reverse (94423421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12432449 - 2⁸ = 12432193 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12434449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6216224 + 6216225.

It is an arithmetic number, because the mean of its divisors is an integer number (6216225).

Almost surely, 2^12432449 is an apocalyptic number.

It is an amenable number.

12432449 is a deficient number, since it is larger than the sum of its proper divisors (1).

12432449 is an equidigital number, since it uses as much as digits as its factorization.

12432449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 29.

The square root of 12432449 is about 3525.9678104033. The cubic root of 12432449 is about 231.6606277144.

The spelling of 12432449 in words is "twelve million, four hundred thirty-two thousand, four hundred forty-nine".