2216268 has 24 divisors (see below), whose sum is σ = 5746160. Its totient is φ = 738720.

The previous prime is 2216237. The next prime is 2216281. The reversal of 2216268 is 8626122.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 10153 + ... + 10368.

2^2216268 is an apocalyptic number.

It is an amenable number.

2216268 is an abundant number, since it is smaller than the sum of its proper divisors (3529892).

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

2216268 is a wasteful number, since it uses less digits than its factorization.

2216268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20534 (or 20526 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 2216268 is about 1488.7135385963. The cubic root of 2216268 is about 130.3789338295.

It can be divided in two parts, 22 and 16268, that added together give a triangular number (16290 = T₁₈₀).

The spelling of 2216268 in words is "two million, two hundred sixteen thousand, two hundred sixty-eight".