12330018 has 12 divisors (see below), whose sum is σ = 26715078. Its totient is φ = 4110000.

The previous prime is 12330011. The next prime is 12330023. The reversal of 12330018 is 81003321.

It can be written as a sum of positive squares in only one way, i.e., 11716929 + 613089 = 3423^2 + 783^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 685001 = 12330018 / (1 + 2 + 3 + 3 + 0 + 0 + 1 + 8).

It is not an unprimeable number, because it can be changed into a prime (12330011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 342483 + ... + 342518.

Almost surely, 2^12330018 is an apocalyptic number.

12330018 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12330018 is an abundant number, since it is smaller than the sum of its proper divisors (14385060).

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

12330018 is a wasteful number, since it uses less digits than its factorization.

12330018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685009 (or 685006 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 12330018 is about 3511.4125362879. The cubic root of 12330018 is about 231.0226547748.

Adding to 12330018 its reverse (81003321), we get a palindrome (93333339).

The spelling of 12330018 in words is "twelve million, three hundred thirty thousand, eighteen".