6644200 has 48 divisors (see below), whose sum is σ = 15624000. Its totient is φ = 2627520.

The previous prime is 6644191. The next prime is 6644227. The reversal of 6644200 is 24466.

It is a nialpdrome in base 10.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 27681 + ... + 27919.

It is an arithmetic number, because the mean of its divisors is an integer number (325500).

Almost surely, 2^6644200 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6644200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7812000).

6644200 is an abundant number, since it is smaller than the sum of its proper divisors (8979800).

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

6644200 is a wasteful number, since it uses less digits than its factorization.

6644200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394 (or 385 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 6644200 is about 2577.6345745664. The cubic root of 6644200 is about 187.9955484082.

Adding to 6644200 its reverse (24466), we get a palindrome (6668666).

The spelling of 6644200 in words is "six million, six hundred forty-four thousand, two hundred".