12508424 has 16 divisors (see below), whose sum is σ = 23896620. Its totient is φ = 6136000.

The previous prime is 12508421. The next prime is 12508453. The reversal of 12508424 is 42480521.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12460900 + 47524 = 3530^2 + 218^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12508393 and 12508402.

It is not an unprimeable number, because it can be changed into a prime (12508421) 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, 14327 + ... + 15174.

Almost surely, 2^12508424 is an apocalyptic number.

It is an amenable number.

12508424 is a deficient number, since it is larger than the sum of its proper divisors (11388196).

12508424 is a wasteful number, since it uses less digits than its factorization.

12508424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29560 (or 29556 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 12508424 is about 3536.7250387894. The cubic root of 12508424 is about 232.1315642993.

Adding to 12508424 its reverse (42480521), we get a palindrome (54988945).

The spelling of 12508424 in words is "twelve million, five hundred eight thousand, four hundred twenty-four".