4400443432 has 96 divisors (see below), whose sum is σ = 10693710720. Its totient is φ = 1677903360.

The previous prime is 4400443429. The next prime is 4400443451. The reversal of 4400443432 is 2343440044.

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 4400443432.

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 23 ways as a sum of consecutive naturals, for example, 191808 + ... + 213520.

It is an arithmetic number, because the mean of its divisors is an integer number (111392820).

Almost surely, 2^4400443432 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 4400443432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5346855360).

4400443432 is an abundant number, since it is smaller than the sum of its proper divisors (6293267288).

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

4400443432 is a wasteful number, since it uses less digits than its factorization.

4400443432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21791 (or 21780 counting only the distinct ones).

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

The square root of 4400443432 is about 66335.8382173618. The cubic root of 4400443432 is about 1638.6975868173.

Adding to 4400443432 its reverse (2343440044), we get a palindrome (6743883476).

The spelling of 4400443432 in words is "four billion, four hundred million, four hundred forty-three thousand, four hundred thirty-two".