443994993 has 32 divisors (see below), whose sum is σ = 715303680. Its totient is φ = 270552960.

The previous prime is 443994953. The next prime is 443995003. The reversal of 443994993 is 399499344.

It is not a de Polignac number, because 443994993 - 2¹⁴ = 443978609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (443994953) 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 31 ways as a sum of consecutive naturals, for example, 30013 + ... + 42293.

It is an arithmetic number, because the mean of its divisors is an integer number (22353240).

Almost surely, 2^443994993 is an apocalyptic number.

It is an amenable number.

443994993 is a deficient number, since it is larger than the sum of its proper divisors (271308687).

443994993 is a wasteful number, since it uses less digits than its factorization.

443994993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12406 (or 12400 counting only the distinct ones).

The product of its digits is 3779136, while the sum is 54.

The square root of 443994993 is about 21071.1886945184. The cubic root of 443994993 is about 762.8854948703.

The spelling of 443994993 in words is "four hundred forty-three million, nine hundred ninety-four thousand, nine hundred ninety-three".