320343443 has 4 divisors (see below), whose sum is σ = 366106800. Its totient is φ = 274580088.

The previous prime is 320343433. The next prime is 320343449. The reversal of 320343443 is 344343023.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 320343443 - 2¹⁶ = 320277907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320343449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22881668 + ... + 22881681.

It is an arithmetic number, because the mean of its divisors is an integer number (91526700).

Almost surely, 2^320343443 is an apocalyptic number.

320343443 is a deficient number, since it is larger than the sum of its proper divisors (45763357).

320343443 is an equidigital number, since it uses as much as digits as its factorization.

320343443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45763356.

The product of its (nonzero) digits is 10368, while the sum is 26.

The square root of 320343443 is about 17898.1407693648. The cubic root of 320343443 is about 684.2349908762.

Adding to 320343443 its reverse (344343023), we get a palindrome (664686466).

The spelling of 320343443 in words is "three hundred twenty million, three hundred forty-three thousand, four hundred forty-three".