320230020 has 96 divisors (see below), whose sum is σ = 1035732096. Its totient is φ = 73062400.

The previous prime is 320229997. The next prime is 320230021. The reversal of 320230020 is 20032023.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 320229978 and 320230005.

It is not an unprimeable number, because it can be changed into a prime (320230021) 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 31 ways as a sum of consecutive naturals, for example, 3051 + ... + 25490.

It is an arithmetic number, because the mean of its divisors is an integer number (10788876).

Almost surely, 2^320230020 is an apocalyptic number.

320230020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 320230020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (517866048).

320230020 is an abundant number, since it is smaller than the sum of its proper divisors (715502076).

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

320230020 is a wasteful number, since it uses less digits than its factorization.

320230020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28581 (or 28579 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 12.

The square root of 320230020 is about 17894.9719195086. The cubic root of 320230020 is about 684.1542263630.

Adding to 320230020 its reverse (20032023), we get a palindrome (340262043).

The spelling of 320230020 in words is "three hundred twenty million, two hundred thirty thousand, twenty".