6444004 has 12 divisors (see below), whose sum is σ = 12888064. Its totient is φ = 2761704.

The previous prime is 6443999. The next prime is 6444017. The reversal of 6444004 is 4004446.

It is a happy number.

6444004 is an admirable number.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

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 3 ways as a sum of consecutive naturals, for example, 115044 + ... + 115099.

Almost surely, 2^6444004 is an apocalyptic number.

It is an amenable number.

6444004 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

6444004 is a wasteful number, since it uses less digits than its factorization.

6444004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230154 (or 230152 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 6444004 is about 2538.5042840224. The cubic root of 6444004 is about 186.0880994758.

The spelling of 6444004 in words is "six million, four hundred forty-four thousand, four".