444944643 has 32 divisors (see below), whose sum is σ = 719480832. Its totient is φ = 240883200.

The previous prime is 444944639. The next prime is 444944659. The reversal of 444944643 is 346449444.

It is not a de Polignac number, because 444944643 - 2² = 444944639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 444944595 and 444944604.

It is not an unprimeable number, because it can be changed into a prime (444944443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3430 + ... + 30027.

It is an arithmetic number, because the mean of its divisors is an integer number (22483776).

Almost surely, 2^444944643 is an apocalyptic number.

444944643 is a deficient number, since it is larger than the sum of its proper divisors (274536189).

444944643 is a wasteful number, since it uses less digits than its factorization.

444944643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33515.

The product of its digits is 663552, while the sum is 42.

The square root of 444944643 is about 21093.7109821861. The cubic root of 444944643 is about 763.4290132391.

The spelling of 444944643 in words is "four hundred forty-four million, nine hundred forty-four thousand, six hundred forty-three".