12506304 has 56 divisors (see below), whose sum is σ = 33741360. Its totient is φ = 4086784.

The previous prime is 12506303. The next prime is 12506311. The reversal of 12506304 is 40360521.

It is a happy number.

12506304 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12506303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9562 + ... + 10790.

Almost surely, 2^12506304 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 12506304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16870680).

12506304 is an abundant number, since it is smaller than the sum of its proper divisors (21235056).

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

12506304 is a wasteful number, since it uses less digits than its factorization.

12506304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1297 (or 1287 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 12506304 is about 3536.4253137879. The cubic root of 12506304 is about 232.1184492253.

Adding to 12506304 its reverse (40360521), we get a palindrome (52866825).

The spelling of 12506304 in words is "twelve million, five hundred six thousand, three hundred four".