2223618 has 8 divisors (see below), whose sum is σ = 4447248. Its totient is φ = 741204.

The previous prime is 2223607. The next prime is 2223623. The reversal of 2223618 is 8163222.

It is a sphenic number, since it is the product of 3 distinct primes.

2223618 is an admirable number.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a d-powerful number, because it can be written as 2⁴ + 2⁸ + 2¹³ + 3¹² + 6⁸ + 1 + 8⁴ .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185296 + ... + 185307.

It is an arithmetic number, because the mean of its divisors is an integer number (555906).

2^2223618 is an apocalyptic number.

2223618 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2223618 is a wasteful number, since it uses less digits than its factorization.

2223618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370608.

The product of its digits is 1152, while the sum is 24.

The square root of 2223618 is about 1491.1800696093. The cubic root of 2223618 is about 130.5229037470.

The spelling of 2223618 in words is "two million, two hundred twenty-three thousand, six hundred eighteen".