6004006644 has 12 divisors (see below), whose sum is σ = 14009348864. Its totient is φ = 2001335544.

The previous prime is 6004006643. The next prime is 6004006651. The reversal of 6004006644 is 4466004006.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×6004006644² = 72096191562392285472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6004006643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250166932 + ... + 250166955.

Almost surely, 2^6004006644 is an apocalyptic number.

It is an amenable number.

6004006644 is an abundant number, since it is smaller than the sum of its proper divisors (8005342220).

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

6004006644 is a wasteful number, since it uses less digits than its factorization.

6004006644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500333894 (or 500333892 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 6004006644 is about 77485.5253837773. The cubic root of 6004006644 is about 1817.5249781284.

The spelling of 6004006644 in words is "six billion, four million, six thousand, six hundred forty-four".