6244080644 has 6 divisors (see below), whose sum is σ = 10927141134. Its totient is φ = 3122040320.

The previous prime is 6244080631. The next prime is 6244080737. The reversal of 6244080644 is 4460804426.

It can be written as a sum of positive squares in only one way, i.e., 5721409600 + 522671044 = 75640^2 + 22862^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6244080598 and 6244080607.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 780510077 + ... + 780510084.

It is an arithmetic number, because the mean of its divisors is an integer number (1821190189).

Almost surely, 2^6244080644 is an apocalyptic number.

It is an amenable number.

6244080644 is a deficient number, since it is larger than the sum of its proper divisors (4683060490).

6244080644 is a wasteful number, since it uses less digits than its factorization.

6244080644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1561020165 (or 1561020163 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 38.

The square root of 6244080644 is about 79019.4953413397. The cubic root of 6244080644 is about 1841.4340431320.

The spelling of 6244080644 in words is "six billion, two hundred forty-four million, eighty thousand, six hundred forty-four".