4440644306 has 48 divisors (see below), whose sum is σ = 7886574720. Its totient is φ = 1869416640.

The previous prime is 4440644279. The next prime is 4440644311. The reversal of 4440644306 is 6034460444.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2176835 + ... + 2178873.

It is an arithmetic number, because the mean of its divisors is an integer number (164303640).

Almost surely, 2^4440644306 is an apocalyptic number.

4440644306 is a deficient number, since it is larger than the sum of its proper divisors (3445930414).

4440644306 is a wasteful number, since it uses less digits than its factorization.

4440644306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2439 (or 2432 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 35.

The square root of 4440644306 is about 66638.1595334085. The cubic root of 4440644306 is about 1643.6726519026.

The spelling of 4440644306 in words is "four billion, four hundred forty million, six hundred forty-four thousand, three hundred six".