12330556 has 36 divisors (see below), whose sum is σ = 25596648. Its totient is φ = 5180448.

The previous prime is 12330547. The next prime is 12330581. The reversal of 12330556 is 65503321.

It is a happy number.

12330556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12330556² = 304085222538272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12330556.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9795 + ... + 10981.

It is an arithmetic number, because the mean of its divisors is an integer number (711018).

Almost surely, 2^12330556 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 12330556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12798324).

12330556 is an abundant number, since it is smaller than the sum of its proper divisors (13266092).

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

12330556 is a wasteful number, since it uses less digits than its factorization.

12330556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1258 (or 1249 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 12330556 is about 3511.4891427997. The cubic root of 12330556 is about 231.0260148234.

Adding to 12330556 its reverse (65503321), we get a palindrome (77833877).

The spelling of 12330556 in words is "twelve million, three hundred thirty thousand, five hundred fifty-six".