2644022 has 4 divisors (see below), whose sum is σ = 3966036. Its totient is φ = 1322010.

The previous prime is 2644007. The next prime is 2644039. The reversal of 2644022 is 2204462.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 2643985 and 2644003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661004 + ... + 661007.

It is an arithmetic number, because the mean of its divisors is an integer number (991509).

2^2644022 is an apocalyptic number.

2644022 is a deficient number, since it is larger than the sum of its proper divisors (1322014).

2644022 is a wasteful number, since it uses less digits than its factorization.

2644022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1322013.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 2644022 is about 1626.0448948292. The cubic root of 2644022 is about 138.2786151551.

Adding to 2644022 its reverse (2204462), we get a palindrome (4848484).

It can be divided in two parts, 26440 and 22, that added together give a palindrome (26462).

The spelling of 2644022 in words is "two million, six hundred forty-four thousand, twenty-two".