4431222432 has 144 divisors (see below), whose sum is σ = 15509370240. Its totient is φ = 1168667136.

The previous prime is 4431222409. The next prime is 4431222437. The reversal of 4431222432 is 2342221344.

4431222432 is a `hidden beast` number, since 4 + 4 + 3 + 1 + 222 + 432 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 4431222396 and 4431222405.

It is not an unprimeable number, because it can be changed into a prime (4431222437) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58332 + ... + 110747.

It is an arithmetic number, because the mean of its divisors is an integer number (107703960).

Almost surely, 2^4431222432 is an apocalyptic number.

4431222432 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

4431222432 is an abundant number, since it is smaller than the sum of its proper divisors (11078147808).

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

4431222432 is a wasteful number, since it uses less digits than its factorization.

4431222432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169115 (or 169104 counting only the distinct ones).

The product of its digits is 9216, while the sum is 27.

The square root of 4431222432 is about 66567.4277105553. The cubic root of 4431222432 is about 1642.5093490707.

Adding to 4431222432 its reverse (2342221344), we get a palindrome (6773443776).

The spelling of 4431222432 in words is "four billion, four hundred thirty-one million, two hundred twenty-two thousand, four hundred thirty-two".