4431023320 has 16 divisors (see below), whose sum is σ = 9969802560. Its totient is φ = 1772409312.

The previous prime is 4431023297. The next prime is 4431023329. The reversal of 4431023320 is 233201344.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 4431023291 and 4431023300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4431023329) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 55387752 + ... + 55387831.

It is an arithmetic number, because the mean of its divisors is an integer number (623112660).

Almost surely, 2^4431023320 is an apocalyptic number.

4431023320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4431023320 is an abundant number, since it is smaller than the sum of its proper divisors (5538779240).

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

4431023320 is a wasteful number, since it uses less digits than its factorization.

4431023320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110775594 (or 110775590 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 4431023320 is about 66565.9321274779. The cubic root of 4431023320 is about 1642.4847472650.

Adding to 4431023320 its reverse (233201344), we get a palindrome (4664224664).

The spelling of 4431023320 in words is "four billion, four hundred thirty-one million, twenty-three thousand, three hundred twenty".