2668222 has 4 divisors (see below), whose sum is σ = 4002336. Its totient is φ = 1334110.

The previous prime is 2668219. The next prime is 2668229. The reversal of 2668222 is 2228662.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2668229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 667054 + ... + 667057.

It is an arithmetic number, because the mean of its divisors is an integer number (1000584).

2^2668222 is an apocalyptic number.

2668222 is a deficient number, since it is larger than the sum of its proper divisors (1334114).

2668222 is a wasteful number, since it uses less digits than its factorization.

2668222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1334113.

The product of its digits is 4608, while the sum is 28.

The square root of 2668222 is about 1633.4693140675. The cubic root of 2668222 is about 138.6992098279.

The spelling of 2668222 in words is "two million, six hundred sixty-eight thousand, two hundred twenty-two".