320414221 has 4 divisors (see below), whose sum is σ = 328229244. Its totient is φ = 312599200.

The previous prime is 320414209. The next prime is 320414231. The reversal of 320414221 is 122414023.

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

It can be written as a sum of positive squares in 2 ways, for example, as 44488900 + 275925321 = 6670^2 + 16611^2 .

It is a cyclic number.

It is not a de Polignac number, because 320414221 - 2⁵ = 320414189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320414201) 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 3 ways as a sum of consecutive naturals, for example, 3907450 + ... + 3907531.

It is an arithmetic number, because the mean of its divisors is an integer number (82057311).

Almost surely, 2^320414221 is an apocalyptic number.

It is an amenable number.

320414221 is a deficient number, since it is larger than the sum of its proper divisors (7815023).

320414221 is an equidigital number, since it uses as much as digits as its factorization.

320414221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7815022.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 320414221 is about 17900.1179046396. The cubic root of 320414221 is about 684.2853797312.

Adding to 320414221 its reverse (122414023), we get a palindrome (442828244).

The spelling of 320414221 in words is "three hundred twenty million, four hundred fourteen thousand, two hundred twenty-one".