320434423344 has 60 divisors (see below), whose sum is σ = 1024881531856. Its totient is φ = 91552692096.

The previous prime is 320434423343. The next prime is 320434423363. The reversal of 320434423344 is 443324434023.

320434423344 is a `hidden beast` number, since 3 + 204 + 3 + 442 + 3 + 3 + 4 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 320434423299 and 320434423308.

It is not an unprimeable number, because it can be changed into a prime (320434423343) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 158944639 + ... + 158946654.

Almost surely, 2^320434423344 is an apocalyptic number.

It is an amenable number.

320434423344 is an abundant number, since it is smaller than the sum of its proper divisors (704447108512).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320434423344 is a wasteful number, since it uses less digits than its factorization.

320434423344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317891314 (or 317891305 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 36.

Adding to 320434423344 its reverse (443324434023), we get a palindrome (763758857367).

The spelling of 320434423344 in words is "three hundred twenty billion, four hundred thirty-four million, four hundred twenty-three thousand, three hundred forty-four".