641030044 has 24 divisors (see below), whose sum is σ = 1142225280. Its totient is φ = 314693616.

The previous prime is 641030023. The next prime is 641030051. The reversal of 641030044 is 440030146.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 641029997 and 641030024.

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, 321619 + ... + 323605.

It is an arithmetic number, because the mean of its divisors is an integer number (47592720).

Almost surely, 2^641030044 is an apocalyptic number.

It is an amenable number.

641030044 is a deficient number, since it is larger than the sum of its proper divisors (501195236).

641030044 is a wasteful number, since it uses less digits than its factorization.

641030044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3417 (or 3415 counting only the distinct ones).

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

The square root of 641030044 is about 25318.5711287189. The cubic root of 641030044 is about 862.2359537315.

The spelling of 641030044 in words is "six hundred forty-one million, thirty thousand, forty-four".