2668216 has 16 divisors (see below), whose sum is σ = 5088600. Its totient is φ = 1311264.

The previous prime is 2668213. The next prime is 2668217. The reversal of 2668216 is 6128662.

2668216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2668213) 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 3 ways as a sum of consecutive naturals, for example, 2355 + ... + 3298.

2^2668216 is an apocalyptic number.

It is an amenable number.

2668216 is a deficient number, since it is larger than the sum of its proper divisors (2420384).

2668216 is a wasteful number, since it uses less digits than its factorization.

2668216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5718 (or 5714 counting only the distinct ones).

The product of its digits is 6912, while the sum is 31.

The square root of 2668216 is about 1633.4674774846. The cubic root of 2668216 is about 138.6991058640.

The spelling of 2668216 in words is "two million, six hundred sixty-eight thousand, two hundred sixteen".