32223444440 has 128 divisors (see below), whose sum is σ = 83353881600. Its totient is φ = 11087953920.

The previous prime is 32223444437. The next prime is 32223444503. The reversal of 32223444440 is 4444432223.

It is a junction number, because it is equal to n+sod(n) for n = 32223444397 and 32223444406.

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, 9637409 + ... + 9640751.

It is an arithmetic number, because the mean of its divisors is an integer number (651202200).

Almost surely, 2^32223444440 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 32223444440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41676940800).

32223444440 is an abundant number, since it is smaller than the sum of its proper divisors (51130437160).

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

32223444440 is a wasteful number, since it uses less digits than its factorization.

32223444440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4537 (or 4533 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 32.

Adding to 32223444440 its reverse (4444432223), we get a palindrome (36667876663).

The spelling of 32223444440 in words is "thirty-two billion, two hundred twenty-three million, four hundred forty-four thousand, four hundred forty".