2220518 has 12 divisors (see below), whose sum is σ = 3427452. Its totient is φ = 1078920.

The previous prime is 2220503. The next prime is 2220521. The reversal of 2220518 is 8150222.

2220518 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a d-powerful number, because it can be written as 2⁷ + 2¹⁰ + 2¹⁸ + 0 + 5⁹ + 1 + 8⁴ .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2220518.

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 5 ways as a sum of consecutive naturals, for example, 2333 + ... + 3143.

It is an arithmetic number, because the mean of its divisors is an integer number (285621).

2^2220518 is an apocalyptic number.

2220518 is a deficient number, since it is larger than the sum of its proper divisors (1206934).

2220518 is an equidigital number, since it uses as much as digits as its factorization.

2220518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 887 (or 850 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 2220518 is about 1490.1402618546. The cubic root of 2220518 is about 130.4622204855.

The spelling of 2220518 in words is "two million, two hundred twenty thousand, five hundred eighteen".