6444842 has 8 divisors (see below), whose sum is σ = 9753156. Its totient is φ = 3193792.

The previous prime is 6444839. The next prime is 6444847. The reversal of 6444842 is 2484446.

It can be written as a sum of positive squares in 2 ways, for example, as 6355441 + 89401 = 2521^2 + 299^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 6444799 and 6444808.

It is not an unprimeable number, because it can be changed into a prime (6444847) 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 3 ways as a sum of consecutive naturals, for example, 14033 + ... + 14484.

Almost surely, 2^6444842 is an apocalyptic number.

6444842 is a deficient number, since it is larger than the sum of its proper divisors (3308314).

6444842 is a wasteful number, since it uses less digits than its factorization.

6444842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28632.

The product of its digits is 24576, while the sum is 32.

The square root of 6444842 is about 2538.6693364832. The cubic root of 6444842 is about 186.0961656340.

The spelling of 6444842 in words is "six million, four hundred forty-four thousand, eight hundred forty-two".