12030606 has 60 divisors (see below), whose sum is σ = 31110552. Its totient is φ = 3403944.

The previous prime is 12030559. The next prime is 12030607. The reversal of 12030606 is 60603021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12030607) 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 29 ways as a sum of consecutive naturals, for example, 116751 + ... + 116853.

Almost surely, 2^12030606 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12030606, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15555276).

12030606 is an abundant number, since it is smaller than the sum of its proper divisors (19079946).

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

12030606 is an equidigital number, since it uses as much as digits as its factorization.

12030606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227 (or 115 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 12030606 is about 3468.5163975394. The cubic root of 12030606 is about 229.1373228470.

Adding to 12030606 its reverse (60603021), we get a palindrome (72633627).

The spelling of 12030606 in words is "twelve million, thirty thousand, six hundred six".