320045443 has 8 divisors (see below), whose sum is σ = 337191120. Its totient is φ = 302929920.

The previous prime is 320045423. The next prime is 320045459. The reversal of 320045443 is 344540023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 320045443 - 2¹³ = 320037251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320045423) 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 7 ways as a sum of consecutive naturals, for example, 16203 + ... + 30043.

It is an arithmetic number, because the mean of its divisors is an integer number (42148890).

Almost surely, 2^320045443 is an apocalyptic number.

320045443 is a deficient number, since it is larger than the sum of its proper divisors (17145677).

320045443 is a wasteful number, since it uses less digits than its factorization.

320045443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15077.

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 320045443 is about 17889.8139453713. The cubic root of 320045443 is about 684.0227548202.

Adding to 320045443 its reverse (344540023), we get a palindrome (664585466).

The spelling of 320045443 in words is "three hundred twenty million, forty-five thousand, four hundred forty-three".