6641944 has 32 divisors (see below), whose sum is σ = 13474800. Its totient is φ = 3058560.

The previous prime is 6641903. The next prime is 6641953. The reversal of 6641944 is 4491466.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5034 + ... + 6214.

Almost surely, 2^6641944 is an apocalyptic number.

It is an amenable number.

6641944 is an abundant number, since it is smaller than the sum of its proper divisors (6832856).

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

6641944 is a wasteful number, since it uses less digits than its factorization.

6641944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1243 (or 1239 counting only the distinct ones).

The product of its digits is 20736, while the sum is 34.

The square root of 6641944 is about 2577.1969268956. The cubic root of 6641944 is about 187.9742683962.

The spelling of 6641944 in words is "six million, six hundred forty-one thousand, nine hundred forty-four".