320440341 has 16 divisors (see below), whose sum is σ = 465667776. Its totient is φ = 194816256.

The previous prime is 320440319. The next prime is 320440391. The reversal of 320440341 is 143044023.

It is not a de Polignac number, because 320440341 - 2⁶ = 320440277 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320440391) 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 15 ways as a sum of consecutive naturals, for example, 46260 + ... + 52733.

It is an arithmetic number, because the mean of its divisors is an integer number (29104236).

Almost surely, 2^320440341 is an apocalyptic number.

It is an amenable number.

320440341 is a deficient number, since it is larger than the sum of its proper divisors (145227435).

320440341 is a wasteful number, since it uses less digits than its factorization.

320440341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99092.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 320440341 is about 17900.8474939037. The cubic root of 320440341 is about 684.3039734216.

Adding to 320440341 its reverse (143044023), we get a palindrome (463484364).

The spelling of 320440341 in words is "three hundred twenty million, four hundred forty thousand, three hundred forty-one".