12424456 has 32 divisors (see below), whose sum is σ = 25855200. Its totient is φ = 5549440.

The previous prime is 12424427. The next prime is 12424471. The reversal of 12424456 is 65442421.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3996 + ... + 6388.

It is an arithmetic number, because the mean of its divisors is an integer number (807975).

Almost surely, 2^12424456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12424456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12927600).

12424456 is an abundant number, since it is smaller than the sum of its proper divisors (13430744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12424456 is a wasteful number, since it uses less digits than its factorization.

12424456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2469 (or 2465 counting only the distinct ones).

The product of its digits is 7680, while the sum is 28.

The square root of 12424456 is about 3524.8341804970. The cubic root of 12424456 is about 231.6109710898.

Adding to 12424456 its reverse (65442421), we get a palindrome (77866877).

It can be divided in two parts, 12424 and 456, that added together give a triangular number (12880 = T₁₆₀).

The spelling of 12424456 in words is "twelve million, four hundred twenty-four thousand, four hundred fifty-six".