443421012 has 24 divisors (see below), whose sum is σ = 1089104800. Its totient is φ = 140027616.

The previous prime is 443420969. The next prime is 443421019. The reversal of 443421012 is 210124344.

It is a self number, because there is not a number n which added to its sum of digits gives 443421012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (443421019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 972187 + ... + 972642.

Almost surely, 2^443421012 is an apocalyptic number.

It is an amenable number.

443421012 is an abundant number, since it is smaller than the sum of its proper divisors (645683788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

443421012 is a wasteful number, since it uses less digits than its factorization.

443421012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1944855 (or 1944853 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 443421012 is about 21057.5642466074. The cubic root of 443421012 is about 762.5566093240.

Adding to 443421012 its reverse (210124344), we get a palindrome (653545356).

It can be divided in two parts, 44342 and 1012, that added together give a palindrome (45354).

The spelling of 443421012 in words is "four hundred forty-three million, four hundred twenty-one thousand, twelve".