2622222 has 12 divisors (see below), whose sum is σ = 5681520. Its totient is φ = 874068.

The previous prime is 2622211. The next prime is 2622229. The reversal of 2622222 is 2222262.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 145679 = 2622222 / (2 + 6 + 2 + 2 + 2 + 2 + 2).

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 2³ + 6 + 2⁸ + 2⁹ + 2¹⁹ + 2²⁰ + 2²⁰ .

2622222 is a modest number, since divided by 2222 gives 262 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 2622195 and 2622204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2622229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 72822 + ... + 72857.

It is an arithmetic number, because the mean of its divisors is an integer number (473460).

2^2622222 is an apocalyptic number.

2622222 is an abundant number, since it is smaller than the sum of its proper divisors (3059298).

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

2622222 is a wasteful number, since it uses less digits than its factorization.

2622222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145687 (or 145684 counting only the distinct ones).

The product of its digits is 384, while the sum is 18.

The square root of 2622222 is about 1619.3276382499. The cubic root of 2622222 is about 137.8975294754.

Adding to 2622222 its reverse (2222262), we get a palindrome (4844484).

It can be divided in two parts, 26222 and 22, that added together give a square (26244 = 162²).

The spelling of 2622222 in words is "two million, six hundred twenty-two thousand, two hundred twenty-two".