2205518 has 16 divisors (see below), whose sum is σ = 3801600. Its totient is φ = 940056.

The previous prime is 2205503. The next prime is 2205521. The reversal of 2205518 is 8155022.

2205518 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2205493 and 2205502.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3383 + ... + 3981.

It is an arithmetic number, because the mean of its divisors is an integer number (237600).

2^2205518 is an apocalyptic number.

2205518 is a deficient number, since it is larger than the sum of its proper divisors (1596082).

2205518 is a wasteful number, since it uses less digits than its factorization.

2205518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 871.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 2205518 is about 1485.0986499220. The cubic root of 2205518 is about 130.1677912279.

The spelling of 2205518 in words is "two million, two hundred five thousand, five hundred eighteen".