4443220432 has 30 divisors (see below), whose sum is σ = 10014249858. Its totient is φ = 1904236992.

The previous prime is 4443220417. The next prime is 4443220493. The reversal of 4443220432 is 2340223444.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2824284736 + 1618935696 = 53144^2 + 40236^2 .

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 4443220432.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 2832903 + ... + 2834470.

Almost surely, 2^4443220432 is an apocalyptic number.

It is an amenable number.

4443220432 is an abundant number, since it is smaller than the sum of its proper divisors (5571029426).

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

4443220432 is a wasteful number, since it uses less digits than its factorization.

4443220432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5667395 (or 5667382 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 28.

The square root of 4443220432 is about 66657.4859411904. The cubic root of 4443220432 is about 1643.9904353155.

Adding to 4443220432 its reverse (2340223444), we get a palindrome (6783443876).

The spelling of 4443220432 in words is "four billion, four hundred forty-three million, two hundred twenty thousand, four hundred thirty-two".