223443443320 has 128 divisors (see below), whose sum is σ = 539270654400. Its totient is φ = 83026944000.

The previous prime is 223443443317. The next prime is 223443443339. The reversal of 223443443320 is 23344344322.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22728166 + ... + 22737994.

Almost surely, 2^223443443320 is an apocalyptic number.

223443443320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 223443443320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269635327200).

223443443320 is an abundant number, since it is smaller than the sum of its proper divisors (315827211080).

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

223443443320 is a wasteful number, since it uses less digits than its factorization.

223443443320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10289 (or 10285 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 34.

Adding to 223443443320 its reverse (23344344322), we get a palindrome (246787787642).

The spelling of 223443443320 in words is "two hundred twenty-three billion, four hundred forty-three million, four hundred forty-three thousand, three hundred twenty".