12328530 has 64 divisors (see below), whose sum is σ = 31933440. Its totient is φ = 3036096.

The previous prime is 12328517. The next prime is 12328531. The reversal of 12328530 is 3582321.

12328530 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12328530.

It is not an unprimeable number, because it can be changed into a prime (12328531) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24259 + ... + 24761.

It is an arithmetic number, because the mean of its divisors is an integer number (498960).

Almost surely, 2^12328530 is an apocalyptic number.

12328530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12328530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15966720).

12328530 is an abundant number, since it is smaller than the sum of its proper divisors (19604910).

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

12328530 is a wasteful number, since it uses less digits than its factorization.

12328530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 12328530 is about 3511.2006493506. The cubic root of 12328530 is about 231.0133610457.

The spelling of 12328530 in words is "twelve million, three hundred twenty-eight thousand, five hundred thirty".