6442444 has 24 divisors (see below), whose sum is σ = 11997440. Its totient is φ = 3018384.

The previous prime is 6442433. The next prime is 6442459. The reversal of 6442444 is 4442446.

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 7 ways as a sum of consecutive naturals, for example, 7417 + ... + 8239.

Almost surely, 2^6442444 is an apocalyptic number.

It is an amenable number.

6442444 is a deficient number, since it is larger than the sum of its proper divisors (5554996).

6442444 is a wasteful number, since it uses less digits than its factorization.

6442444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949 (or 947 counting only the distinct ones).

The product of its digits is 12288, while the sum is 28.

The square root of 6442444 is about 2538.1969978707. The cubic root of 6442444 is about 186.0730818530.

It can be divided in two parts, 6442 and 444, that added together give a palindrome (6886).

The spelling of 6442444 in words is "six million, four hundred forty-two thousand, four hundred forty-four".