443998445 has 16 divisors (see below), whose sum is σ = 584606592. Its totient is φ = 321034560.

The previous prime is 443998433. The next prime is 443998453. The reversal of 443998445 is 544899344.

It is not a de Polignac number, because 443998445 - 2⁸ = 443998189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 443998393 and 443998402.

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 15 ways as a sum of consecutive naturals, for example, 13817 + ... + 32846.

It is an arithmetic number, because the mean of its divisors is an integer number (36537912).

Almost surely, 2^443998445 is an apocalyptic number.

It is an amenable number.

443998445 is a deficient number, since it is larger than the sum of its proper divisors (140608147).

443998445 is a wasteful number, since it uses less digits than its factorization.

443998445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46852.

The product of its digits is 2488320, while the sum is 50.

The square root of 443998445 is about 21071.2706071561. The cubic root of 443998445 is about 762.8874719751.

The spelling of 443998445 in words is "four hundred forty-three million, nine hundred ninety-eight thousand, four hundred forty-five".