444404443 has 4 divisors (see below), whose sum is σ = 507890800. Its totient is φ = 380918088.

The previous prime is 444404423. The next prime is 444404449. The reversal of 444404443 is 344404444.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 444404443 - 2⁹ = 444403931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (444404449) by changing a digit.

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, 31743168 + ... + 31743181.

It is an arithmetic number, because the mean of its divisors is an integer number (126972700).

Almost surely, 2^444404443 is an apocalyptic number.

444404443 is a deficient number, since it is larger than the sum of its proper divisors (63486357).

444404443 is an equidigital number, since it uses as much as digits as its factorization.

444404443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63486356.

The product of its (nonzero) digits is 49152, while the sum is 31.

The square root of 444404443 is about 21080.9023288853. The cubic root of 444404443 is about 763.1199325704.

Adding to 444404443 its reverse (344404444), we get a palindrome (788808887).

Subtracting from 444404443 its reverse (344404444), we obtain a palindrome (99999999).

The spelling of 444404443 in words is "four hundred forty-four million, four hundred four thousand, four hundred forty-three".