320434343 has 8 divisors (see below), whose sum is σ = 345685968. Its totient is φ = 295894144.

The previous prime is 320434313. The next prime is 320434357. The reversal of 320434343 is 343434023.

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 320434343 - 2¹⁸ = 320172199 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 (320434313) 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, 176921 + ... + 178722.

It is an arithmetic number, because the mean of its divisors is an integer number (43210746).

Almost surely, 2^320434343 is an apocalyptic number.

320434343 is a deficient number, since it is larger than the sum of its proper divisors (25251625).

320434343 is a wasteful number, since it uses less digits than its factorization.

320434343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355713.

The product of its (nonzero) digits is 10368, while the sum is 26.

The square root of 320434343 is about 17900.6799591524. The cubic root of 320434343 is about 684.2997037960.

Adding to 320434343 its reverse (343434023), we get a palindrome (663868366).

The spelling of 320434343 in words is "three hundred twenty million, four hundred thirty-four thousand, three hundred forty-three".