320405201 has 8 divisors (see below), whose sum is σ = 328473600. Its totient is φ = 312348960.

The previous prime is 320405159. The next prime is 320405213. The reversal of 320405201 is 102504023.

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

It is a cyclic number.

It is not a de Polignac number, because 320405201 - 2¹⁰ = 320404177 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 320405201.

It is not an unprimeable number, because it can be changed into a prime (320405291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74960 + ... + 79118.

It is an arithmetic number, because the mean of its divisors is an integer number (41059200).

Almost surely, 2^320405201 is an apocalyptic number.

It is an amenable number.

320405201 is a deficient number, since it is larger than the sum of its proper divisors (8068399).

320405201 is a wasteful number, since it uses less digits than its factorization.

320405201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6079.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 320405201 is about 17899.8659492187. The cubic root of 320405201 is about 684.2789585514.

Adding to 320405201 its reverse (102504023), we get a palindrome (422909224).

The spelling of 320405201 in words is "three hundred twenty million, four hundred five thousand, two hundred one".