320044463 has 4 divisors (see below), whose sum is σ = 320359560. Its totient is φ = 319729368.

The previous prime is 320044429. The next prime is 320044481. The reversal of 320044463 is 364440023.

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

It is a cyclic number.

It is not a de Polignac number, because 320044463 - 2²² = 315850159 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 (320044423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156020 + ... + 158057.

It is an arithmetic number, because the mean of its divisors is an integer number (80089890).

Almost surely, 2^320044463 is an apocalyptic number.

320044463 is a deficient number, since it is larger than the sum of its proper divisors (315097).

320044463 is a wasteful number, since it uses less digits than its factorization.

320044463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315096.

The product of its (nonzero) digits is 6912, while the sum is 26.

The square root of 320044463 is about 17889.7865554623. The cubic root of 320044463 is about 684.0220566454.

Adding to 320044463 its reverse (364440023), we get a palindrome (684484486).

The spelling of 320044463 in words is "three hundred twenty million, forty-four thousand, four hundred sixty-three".