2722216 has 16 divisors (see below), whose sum is σ = 5833440. Its totient is φ = 1166640.

The previous prime is 2722207. The next prime is 2722219. The reversal of 2722216 is 6122272.

It is not an unprimeable number, because it can be changed into a prime (2722219) 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, 24250 + ... + 24361.

It is an arithmetic number, because the mean of its divisors is an integer number (364590).

2^2722216 is an apocalyptic number.

It is an amenable number.

2722216 is an abundant number, since it is smaller than the sum of its proper divisors (3111224).

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

2722216 is a wasteful number, since it uses less digits than its factorization.

2722216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48624 (or 48620 counting only the distinct ones).

The product of its digits is 672, while the sum is 22.

The square root of 2722216 is about 1649.9139371495. The cubic root of 2722216 is about 139.6285390869.

Adding to 2722216 its reverse (6122272), we get a palindrome (8844488).

The spelling of 2722216 in words is "two million, seven hundred twenty-two thousand, two hundred sixteen".