320340453 has 8 divisors (see below), whose sum is σ = 440898816. Its totient is φ = 206671200.

The previous prime is 320340451. The next prime is 320340479. The reversal of 320340453 is 354043023.

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

It is not a de Polignac number, because 320340453 - 2¹ = 320340451 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320340451) 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 7 ways as a sum of consecutive naturals, for example, 1722168 + ... + 1722353.

It is an arithmetic number, because the mean of its divisors is an integer number (55112352).

Almost surely, 2^320340453 is an apocalyptic number.

It is an amenable number.

320340453 is a deficient number, since it is larger than the sum of its proper divisors (120558363).

320340453 is a wasteful number, since it uses less digits than its factorization.

320340453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3444555.

The product of its (nonzero) digits is 4320, while the sum is 24.

The square root of 320340453 is about 17898.0572409410. The cubic root of 320340453 is about 684.2328620475.

Adding to 320340453 its reverse (354043023), we get a palindrome (674383476).

The spelling of 320340453 in words is "three hundred twenty million, three hundred forty thousand, four hundred fifty-three".