2218604 has 12 divisors (see below), whose sum is σ = 3895584. Its totient is φ = 1105584.

The previous prime is 2218597. The next prime is 2218607. The reversal of 2218604 is 4068122.

2218604 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2218604.

It is not an unprimeable number, because it can be changed into a prime (2218607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 749 + ... + 2235.

It is an arithmetic number, because the mean of its divisors is an integer number (324632).

2^2218604 is an apocalyptic number.

It is an amenable number.

2218604 is a deficient number, since it is larger than the sum of its proper divisors (1676980).

2218604 is a wasteful number, since it uses less digits than its factorization.

2218604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1864 (or 1862 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 2218604 is about 1489.4979019791. The cubic root of 2218604 is about 130.4247252600.

The spelling of 2218604 in words is "two million, two hundred eighteen thousand, six hundred four".