12326618 has 4 divisors (see below), whose sum is σ = 18489930. Its totient is φ = 6163308.

The previous prime is 12326599. The next prime is 12326641. The reversal of 12326618 is 81662321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11950849 + 375769 = 3457^2 + 613^2 .

It is a super-2 number, since 2×12326618² = 303891022635848, which contains 22 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3081653 + ... + 3081656.

Almost surely, 2^12326618 is an apocalyptic number.

12326618 is a deficient number, since it is larger than the sum of its proper divisors (6163312).

12326618 is an equidigital number, since it uses as much as digits as its factorization.

12326618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6163311.

The product of its digits is 3456, while the sum is 29.

The square root of 12326618 is about 3510.9283672556. The cubic root of 12326618 is about 231.0014180057.

Adding to 12326618 its reverse (81662321), we get a palindrome (93988939).

The spelling of 12326618 in words is "twelve million, three hundred twenty-six thousand, six hundred eighteen".