2218244 has 24 divisors (see below), whose sum is σ = 4468800. Its totient is φ = 943776.

The previous prime is 2218219. The next prime is 2218277. The reversal of 2218244 is 4428122.

It is a happy number.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6182 + ... + 6530.

It is an arithmetic number, because the mean of its divisors is an integer number (186200).

2^2218244 is an apocalyptic number.

It is an amenable number.

2218244 is an abundant number, since it is smaller than the sum of its proper divisors (2250556).

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

2218244 is a wasteful number, since it uses less digits than its factorization.

2218244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587 (or 585 counting only the distinct ones).

The product of its digits is 1024, while the sum is 23.

The square root of 2218244 is about 1489.3770509847. The cubic root of 2218244 is about 130.4176704572.

The spelling of 2218244 in words is "two million, two hundred eighteen thousand, two hundred forty-four".