4440320445 has 16 divisors (see below), whose sum is σ = 7750377792. Its totient is φ = 2152882560.

The previous prime is 4440320419. The next prime is 4440320461. The reversal of 4440320445 is 5440230444.

It is not a de Polignac number, because 4440320445 - 2⁸ = 4440320189 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13455352 + ... + 13455681.

It is an arithmetic number, because the mean of its divisors is an integer number (484398612).

Almost surely, 2^4440320445 is an apocalyptic number.

It is an amenable number.

4440320445 is a deficient number, since it is larger than the sum of its proper divisors (3310057347).

4440320445 is a wasteful number, since it uses less digits than its factorization.

4440320445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26911052.

The product of its (nonzero) digits is 30720, while the sum is 30.

The square root of 4440320445 is about 66635.7294925178. The cubic root of 4440320445 is about 1643.6326926554.

Adding to 4440320445 its reverse (5440230444), we get a palindrome (9880550889).

Subtracting 4440320445 from its reverse (5440230444), we obtain a palindrome (999909999).

The spelling of 4440320445 in words is "four billion, four hundred forty million, three hundred twenty thousand, four hundred forty-five".