2236218 has 16 divisors (see below), whose sum is σ = 4548960. Its totient is φ = 732656.

The previous prime is 2236217. The next prime is 2236237. The reversal of 2236218 is 8126322.

2236218 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2⁷ + 2¹⁷ + 3⁸ + 6⁴ + 2²¹ + 1 + 8 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2236217) 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, 2805 + ... + 3512.

It is an arithmetic number, because the mean of its divisors is an integer number (284310).

2^2236218 is an apocalyptic number.

2236218 is an abundant number, since it is smaller than the sum of its proper divisors (2312742).

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

2236218 is a wasteful number, since it uses less digits than its factorization.

2236218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6381.

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

The square root of 2236218 is about 1495.3989434261. The cubic root of 2236218 is about 130.7689729921.

It can be divided in two parts, 223 and 6218, that added together give a triangular number (6441 = T₁₁₃).

The spelling of 2236218 in words is "two million, two hundred thirty-six thousand, two hundred eighteen".