2722168 has 16 divisors (see below), whose sum is σ = 5373000. Its totient is φ = 1289376.

The previous prime is 2722163. The next prime is 2722189. The reversal of 2722168 is 8612272.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2722163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8803 + ... + 9106.

2^2722168 is an apocalyptic number.

It is an amenable number.

2722168 is a deficient number, since it is larger than the sum of its proper divisors (2650832).

2722168 is a wasteful number, since it uses less digits than its factorization.

2722168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17934 (or 17930 counting only the distinct ones).

The product of its digits is 2688, while the sum is 28.

The square root of 2722168 is about 1649.8993908721. The cubic root of 2722168 is about 139.6277184063.

The spelling of 2722168 in words is "two million, seven hundred twenty-two thousand, one hundred sixty-eight".