2644222 has 16 divisors (see below), whose sum is σ = 4602240. Its totient is φ = 1115928.

The previous prime is 2644219. The next prime is 2644247. The reversal of 2644222 is 2224462.

2644222 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

2644222 is strictly pandigital in base 8.

It is a junction number, because it is equal to n+sod(n) for n = 2644193 and 2644202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 472 + ... + 2347.

It is an arithmetic number, because the mean of its divisors is an integer number (287640).

2^2644222 is an apocalyptic number.

2644222 is a deficient number, since it is larger than the sum of its proper divisors (1958018).

2644222 is a wasteful number, since it uses less digits than its factorization.

2644222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2895.

The product of its digits is 1536, while the sum is 22.

The square root of 2644222 is about 1626.1063925832. The cubic root of 2644222 is about 138.2821016397.

Adding to 2644222 its reverse (2224462), we get a palindrome (4868684).

The spelling of 2644222 in words is "two million, six hundred forty-four thousand, two hundred twenty-two".