12530436 has 24 divisors (see below), whose sum is σ = 30246720. Its totient is φ = 4032672.

The previous prime is 12530429. The next prime is 12530459. The reversal of 12530436 is 63403521.

It is a happy number.

12530436 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17656 + ... + 18351.

It is an arithmetic number, because the mean of its divisors is an integer number (1260280).

Almost surely, 2^12530436 is an apocalyptic number.

It is an amenable number.

12530436 is an abundant number, since it is smaller than the sum of its proper divisors (17716284).

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

12530436 is a wasteful number, since it uses less digits than its factorization.

12530436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36043 (or 36041 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 12530436 is about 3539.8355894024. The cubic root of 12530436 is about 232.2676508712.

Adding to 12530436 its reverse (63403521), we get a palindrome (75933957).

The spelling of 12530436 in words is "twelve million, five hundred thirty thousand, four hundred thirty-six".