12238618 has 16 divisors (see below), whose sum is σ = 21061440. Its totient is φ = 5224896.

The previous prime is 12238607. The next prime is 12238643. The reversal of 12238618 is 81683221.

It is a self number, because there is not a number n which added to its sum of digits gives 12238618.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2418 + ... + 5506.

It is an arithmetic number, because the mean of its divisors is an integer number (1316340).

Almost surely, 2^12238618 is an apocalyptic number.

12238618 is a deficient number, since it is larger than the sum of its proper divisors (8822822).

12238618 is a wasteful number, since it uses less digits than its factorization.

12238618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3381.

The product of its digits is 4608, while the sum is 31.

The square root of 12238618 is about 3498.3736221279. The cubic root of 12238618 is about 230.4503965800.

The spelling of 12238618 in words is "twelve million, two hundred thirty-eight thousand, six hundred eighteen".