443423112420 has 96 divisors (see below), whose sum is σ = 1257099435648. Its totient is φ = 116776138752.

The previous prime is 443423112409. The next prime is 443423112427. The reversal of 443423112420 is 24211324344.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (443423112427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1760007 + ... + 1996113.

It is an arithmetic number, because the mean of its divisors is an integer number (13094785788).

Almost surely, 2^443423112420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 443423112420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (628549717824).

443423112420 is an abundant number, since it is smaller than the sum of its proper divisors (813676323228).

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

443423112420 is a wasteful number, since it uses less digits than its factorization.

443423112420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236509 (or 236507 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 443423112420 its reverse (24211324344), we get a palindrome (467634436764).

The spelling of 443423112420 in words is "four hundred forty-three billion, four hundred twenty-three million, one hundred twelve thousand, four hundred twenty".