220320032 has 12 divisors (see below), whose sum is σ = 433755126. Its totient is φ = 110160000.

The previous prime is 220319971. The next prime is 220320043. The reversal of 220320032 is 230023022.

It can be written as a sum of positive squares in only one way, i.e., 174134416 + 46185616 = 13196^2 + 6796^2 .

It is a junction number, because it is equal to n+sod(n) for n = 220319989 and 220320016.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3442469 + ... + 3442532.

Almost surely, 2^220320032 is an apocalyptic number.

It is an amenable number.

220320032 is a deficient number, since it is larger than the sum of its proper divisors (213435094).

220320032 is an equidigital number, since it uses as much as digits as its factorization.

220320032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6885011 (or 6885003 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 220320032 is about 14843.1813301597. The cubic root of 220320032 is about 603.9736549771.

Adding to 220320032 its reverse (230023022), we get a palindrome (450343054).

The spelling of 220320032 in words is "two hundred twenty million, three hundred twenty thousand, thirty-two".