320104445 has 8 divisors (see below), whose sum is σ = 388988160. Its totient is φ = 252841680.

The previous prime is 320104439. The next prime is 320104459. The reversal of 320104445 is 544401023.

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

It is not a de Polignac number, because 320104445 - 2⁸ = 320104189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 320104445.

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 7 ways as a sum of consecutive naturals, for example, 404801 + ... + 405590.

It is an arithmetic number, because the mean of its divisors is an integer number (48623520).

Almost surely, 2^320104445 is an apocalyptic number.

It is an amenable number.

320104445 is a deficient number, since it is larger than the sum of its proper divisors (68883715).

320104445 is an equidigital number, since it uses as much as digits as its factorization.

320104445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810475.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 320104445 is about 17891.4629083259. The cubic root of 320104445 is about 684.0647865916.

Adding to 320104445 its reverse (544401023), we get a palindrome (864505468).

The spelling of 320104445 in words is "three hundred twenty million, one hundred four thousand, four hundred forty-five".