443220012 has 30 divisors (see below), whose sum is σ = 1158665508. Its totient is φ = 147739896.

The previous prime is 443220007. The next prime is 443220047. The reversal of 443220012 is 210022344.

443220012 is a `hidden beast` number, since 443 + 220 + 0 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 683658 + ... + 684305.

Almost surely, 2^443220012 is an apocalyptic number.

It is an amenable number.

443220012 is an abundant number, since it is smaller than the sum of its proper divisors (715445496).

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

443220012 is a wasteful number, since it uses less digits than its factorization.

443220012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1367979 (or 1367968 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 443220012 is about 21052.7910738695. The cubic root of 443220012 is about 762.4413711797.

Adding to 443220012 its reverse (210022344), we get a palindrome (653242356).

The spelling of 443220012 in words is "four hundred forty-three million, two hundred twenty thousand, twelve".