12424424 has 8 divisors (see below), whose sum is σ = 23295810. Its totient is φ = 6212208.

The previous prime is 12424387. The next prime is 12424427. The reversal of 12424424 is 42442421.

It can be written as a sum of positive squares in only one way, i.e., 8352100 + 4072324 = 2890^2 + 2018^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 12424424.

It is not an unprimeable number, because it can be changed into a prime (12424427) 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 as a sum of consecutive naturals, namely, 776519 + ... + 776534.

Almost surely, 2^12424424 is an apocalyptic number.

It is an amenable number.

12424424 is a deficient number, since it is larger than the sum of its proper divisors (10871386).

12424424 is a wasteful number, since it uses less digits than its factorization.

12424424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1553059 (or 1553055 counting only the distinct ones).

The product of its digits is 2048, while the sum is 23.

The square root of 12424424 is about 3524.8296412735. The cubic root of 12424424 is about 231.6107722465.

Adding to 12424424 its reverse (42442421), we get a palindrome (54866845).

The spelling of 12424424 in words is "twelve million, four hundred twenty-four thousand, four hundred twenty-four".