2622216 has 32 divisors (see below), whose sum is σ = 6942240. Its totient is φ = 822528.

The previous prime is 2622211. The next prime is 2622229. The reversal of 2622216 is 6122262.

It is a nude number because it is divisible by every one of its digits.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2622192 and 2622201.

It is not an unprimeable number, because it can be changed into a prime (2622211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2806 + ... + 3621.

It is an arithmetic number, because the mean of its divisors is an integer number (216945).

2^2622216 is an apocalyptic number.

It is an amenable number.

2622216 is an abundant number, since it is smaller than the sum of its proper divisors (4320024).

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

2622216 is a wasteful number, since it uses less digits than its factorization.

2622216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6453 (or 6449 counting only the distinct ones).

The product of its digits is 576, while the sum is 21.

The square root of 2622216 is about 1619.3257856281. The cubic root of 2622216 is about 137.8974242992.

Adding to 2622216 its reverse (6122262), we get a palindrome (8744478).

The spelling of 2622216 in words is "two million, six hundred twenty-two thousand, two hundred sixteen".