6642004 has 12 divisors (see below), whose sum is σ = 11771200. Its totient is φ = 3278808.

The previous prime is 6641983. The next prime is 6642007. The reversal of 6642004 is 4002466.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6642007) 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, 10194 + ... + 10825.

Almost surely, 2^6642004 is an apocalyptic number.

It is an amenable number.

6642004 is a deficient number, since it is larger than the sum of its proper divisors (5129196).

6642004 is a wasteful number, since it uses less digits than its factorization.

6642004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21102 (or 21100 counting only the distinct ones).

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

The square root of 6642004 is about 2577.2085674233. The cubic root of 6642004 is about 187.9748344163.

The spelling of 6642004 in words is "six million, six hundred forty-two thousand, four".