12018318 has 16 divisors (see below), whose sum is σ = 25885776. Its totient is φ = 3697920.

The previous prime is 12018301. The next prime is 12018319. The reversal of 12018318 is 81381021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12018319) 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 7 ways as a sum of consecutive naturals, for example, 76963 + ... + 77118.

It is an arithmetic number, because the mean of its divisors is an integer number (1617861).

Almost surely, 2^12018318 is an apocalyptic number.

12018318 is an abundant number, since it is smaller than the sum of its proper divisors (13867458).

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

12018318 is a wasteful number, since it uses less digits than its factorization.

12018318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154099.

The product of its (nonzero) digits is 384, while the sum is 24.

The square root of 12018318 is about 3466.7445824577. The cubic root of 12018318 is about 229.0592830377.

Adding to 12018318 its reverse (81381021), we get a palindrome (93399339).

The spelling of 12018318 in words is "twelve million, eighteen thousand, three hundred eighteen".