12406424 has 16 divisors (see below), whose sum is σ = 23644320. Its totient is φ = 6101280.

The previous prime is 12406421. The next prime is 12406441. The reversal of 12406424 is 42460421.

It is a self number, because there is not a number n which added to its sum of digits gives 12406424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12406421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12224 + ... + 13199.

It is an arithmetic number, because the mean of its divisors is an integer number (1477770).

Almost surely, 2^12406424 is an apocalyptic number.

It is an amenable number.

12406424 is a deficient number, since it is larger than the sum of its proper divisors (11237896).

12406424 is a wasteful number, since it uses less digits than its factorization.

12406424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25490 (or 25486 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 12406424 is about 3522.2754009305. The cubic root of 12406424 is about 231.4988687675.

Adding to 12406424 its reverse (42460421), we get a palindrome (54866845).

The spelling of 12406424 in words is "twelve million, four hundred six thousand, four hundred twenty-four".