220335320 has 16 divisors (see below), whose sum is σ = 495754560. Its totient is φ = 88134112.

The previous prime is 220335307. The next prime is 220335337. The reversal of 220335320 is 23533022.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 220335292 and 220335301.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2754152 + ... + 2754231.

It is an arithmetic number, because the mean of its divisors is an integer number (30984660).

Almost surely, 2^220335320 is an apocalyptic number.

220335320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220335320 is an abundant number, since it is smaller than the sum of its proper divisors (275419240).

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

220335320 is a wasteful number, since it uses less digits than its factorization.

220335320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5508394 (or 5508390 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 20.

The square root of 220335320 is about 14843.6963051660. The cubic root of 220335320 is about 603.9876245582.

Adding to 220335320 its reverse (23533022), we get a palindrome (243868342).

The spelling of 220335320 in words is "two hundred twenty million, three hundred thirty-five thousand, three hundred twenty".