2628222 has 16 divisors (see below), whose sum is σ = 5309712. Its totient is φ = 867200.

The previous prime is 2628191. The next prime is 2628229. The reversal of 2628222 is 2228262.

2628222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2628192 and 2628201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2628229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1563 + ... + 2774.

It is an arithmetic number, because the mean of its divisors is an integer number (331857).

2^2628222 is an apocalyptic number.

2628222 is an abundant number, since it is smaller than the sum of its proper divisors (2681490).

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

2628222 is a wasteful number, since it uses less digits than its factorization.

2628222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4443.

The product of its digits is 1536, while the sum is 24.

The square root of 2628222 is about 1621.1792004587. The cubic root of 2628222 is about 138.0026254489.

It can be divided in two parts, 2628 and 222, that added together give a triangular number (2850 = T₇₅).

The spelling of 2628222 in words is "two million, six hundred twenty-eight thousand, two hundred twenty-two".