12392449 has 4 divisors (see below), whose sum is σ = 12531780. Its totient is φ = 12253120.

The previous prime is 12392437. The next prime is 12392459. The reversal of 12392449 is 94429321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7661824 + 4730625 = 2768^2 + 2175^2 .

It is a cyclic number.

It is not a de Polignac number, because 12392449 - 2⁹ = 12391937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12392459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69532 + ... + 69709.

It is an arithmetic number, because the mean of its divisors is an integer number (3132945).

Almost surely, 2^12392449 is an apocalyptic number.

It is an amenable number.

12392449 is a deficient number, since it is larger than the sum of its proper divisors (139331).

12392449 is an equidigital number, since it uses as much as digits as its factorization.

12392449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139330.

The product of its digits is 15552, while the sum is 34.

The square root of 12392449 is about 3520.2910391046. The cubic root of 12392449 is about 231.4119134881.

The spelling of 12392449 in words is "twelve million, three hundred ninety-two thousand, four hundred forty-nine".