2223020320 has 72 divisors (see below), whose sum is σ = 5293391796. Its totient is φ = 882229248.

The previous prime is 2223020227. The next prime is 2223020341. The reversal of 2223020320 is 230203222.

It can be written as a sum of positive squares in 6 ways, for example, as 447914896 + 1775105424 = 21164^2 + 42132^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 2223020294 and 2223020303.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5959654 + ... + 5960026.

Almost surely, 2^2223020320 is an apocalyptic number.

2223020320 is a gapful number since it is divisible by the number (20) 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 2223020320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2646695898).

2223020320 is an abundant number, since it is smaller than the sum of its proper divisors (3070371476).

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

2223020320 is an equidigital number, since it uses as much as digits as its factorization.

2223020320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774 (or 573 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 2223020320 is about 47148.9164244524. The cubic root of 2223020320 is about 1305.1120840495.

Adding to 2223020320 its reverse (230203222), we get a palindrome (2453223542).

It can be divided in two parts, 2 and 223020320, that added together give a palindrome (223020322).

The spelling of 2223020320 in words is "two billion, two hundred twenty-three million, twenty thousand, three hundred twenty".