320441020 has 12 divisors (see below), whose sum is σ = 672926184. Its totient is φ = 128176400.

The previous prime is 320441003. The next prime is 320441047. The reversal of 320441020 is 20144023.

It is a junction number, because it is equal to n+sod(n) for n = 320440985 and 320441003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8011006 + ... + 8011045.

It is an arithmetic number, because the mean of its divisors is an integer number (56077182).

Almost surely, 2^320441020 is an apocalyptic number.

It is an amenable number.

320441020 is an abundant number, since it is smaller than the sum of its proper divisors (352485164).

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

320441020 is a wasteful number, since it uses less digits than its factorization.

320441020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16022060 (or 16022058 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 320441020 is about 17900.8664594762. The cubic root of 320441020 is about 684.3044567587.

Adding to 320441020 its reverse (20144023), we get a palindrome (340585043).

The spelling of 320441020 in words is "three hundred twenty million, four hundred forty-one thousand, twenty".