2213622 has 16 divisors (see below), whose sum is σ = 4919280. Its totient is φ = 737856.

The previous prime is 2213609. The next prime is 2213623. The reversal of 2213622 is 2263122.

It is a Harshad number since it is a multiple of its sum of digits (18).

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

It is a d-powerful number, because it can be written as 2² + 2⁹ + 1 + 3¹² + 6⁸ + 2¹⁰ + 2¹⁰ .

It is a junction number, because it is equal to n+sod(n) for n = 2213595 and 2213604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2213623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20443 + ... + 20550.

It is an arithmetic number, because the mean of its divisors is an integer number (307455).

2^2213622 is an apocalyptic number.

2213622 is an abundant number, since it is smaller than the sum of its proper divisors (2705658).

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

2213622 is a wasteful number, since it uses less digits than its factorization.

2213622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41004 (or 40998 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 2213622 is about 1487.8245864348. The cubic root of 2213622 is about 130.3270267435.

Adding to 2213622 its reverse (2263122), we get a palindrome (4476744).

The spelling of 2213622 in words is "two million, two hundred thirteen thousand, six hundred twenty-two".