2045218 has 16 divisors (see below), whose sum is σ = 3524544. Its totient is φ = 871920.

The previous prime is 2045213. The next prime is 2045311. The reversal of 2045218 is 8125402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2045213) 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 7 ways as a sum of consecutive naturals, for example, 4648 + ... + 5068.

It is an arithmetic number, because the mean of its divisors is an integer number (220284).

2^2045218 is an apocalyptic number.

2045218 is a deficient number, since it is larger than the sum of its proper divisors (1479326).

2045218 is a wasteful number, since it uses less digits than its factorization.

2045218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 2045218 is about 1430.1111844888. Note that the first 4 decimals coincide. The cubic root of 2045218 is about 126.9345561514.

The spelling of 2045218 in words is "two million, forty-five thousand, two hundred eighteen".