6441730384 has 20 divisors (see below), whose sum is σ = 12516220116. Its totient is φ = 3211738112.

The previous prime is 6441730349. The next prime is 6441730391. The reversal of 6441730384 is 4830371446.

It can be written as a sum of positive squares in 2 ways, for example, as 2438384400 + 4003345984 = 49380^2 + 63272^2 .

It is a zygodrome in base 4.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 564619 + ... + 575914.

Almost surely, 2^6441730384 is an apocalyptic number.

It is an amenable number.

6441730384 is a deficient number, since it is larger than the sum of its proper divisors (6074489732).

6441730384 is a wasteful number, since it uses less digits than its factorization.

6441730384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1140894 (or 1140888 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 40.

The square root of 6441730384 is about 80260.3911278783. The cubic root of 6441730384 is about 1860.6621129104.

The spelling of 6441730384 in words is "six billion, four hundred forty-one million, seven hundred thirty thousand, three hundred eighty-four".