6644122 has 16 divisors (see below), whose sum is σ = 10208160. Its totient is φ = 3242448.

The previous prime is 6644111. The next prime is 6644123. The reversal of 6644122 is 2214466.

It is not an unprimeable number, because it can be changed into a prime (6644123) 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, 23848 + ... + 24124.

It is an arithmetic number, because the mean of its divisors is an integer number (638010).

Almost surely, 2^6644122 is an apocalyptic number.

6644122 is a deficient number, since it is larger than the sum of its proper divisors (3564038).

6644122 is a wasteful number, since it uses less digits than its factorization.

6644122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525.

The product of its digits is 2304, while the sum is 25.

The square root of 6644122 is about 2577.6194443711. The cubic root of 6644122 is about 187.9948127436.

Adding to 6644122 its reverse (2214466), we get a palindrome (8858588).

The spelling of 6644122 in words is "six million, six hundred forty-four thousand, one hundred twenty-two".