443485021 has 16 divisors (see below), whose sum is σ = 512797824. Its totient is φ = 375689664.

The previous prime is 443484991. The next prime is 443485043. The reversal of 443485021 is 120584344.

It is not a de Polignac number, because 443485021 - 2⁵ = 443484989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (443485121) 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 15 ways as a sum of consecutive naturals, for example, 223791 + ... + 225763.

It is an arithmetic number, because the mean of its divisors is an integer number (32049864).

Almost surely, 2^443485021 is an apocalyptic number.

It is an amenable number.

443485021 is a deficient number, since it is larger than the sum of its proper divisors (69312803).

443485021 is a wasteful number, since it uses less digits than its factorization.

443485021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2340.

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 443485021 is about 21059.0840494073. The cubic root of 443485021 is about 762.5932999154.

The spelling of 443485021 in words is "four hundred forty-three million, four hundred eighty-five thousand, twenty-one".