12256449 has 8 divisors (see below), whose sum is σ = 16359072. Its totient is φ = 8162400.

The previous prime is 12256427. The next prime is 12256469. The reversal of 12256449 is 94465221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12256449 - 2²⁰ = 11207873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12256469) 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, 2874 + ... + 5724.

It is an arithmetic number, because the mean of its divisors is an integer number (2044884).

Almost surely, 2^12256449 is an apocalyptic number.

It is an amenable number.

12256449 is a deficient number, since it is larger than the sum of its proper divisors (4102623).

12256449 is a wasteful number, since it uses less digits than its factorization.

12256449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4287.

The product of its digits is 17280, while the sum is 33.

The square root of 12256449 is about 3500.9211644937. The cubic root of 12256449 is about 230.5622601643.

The spelling of 12256449 in words is "twelve million, two hundred fifty-six thousand, four hundred forty-nine".