220023320 has 64 divisors (see below), whose sum is σ = 547741440. Its totient is φ = 78870400.

The previous prime is 220023301. The next prime is 220023329. The reversal of 220023320 is 23320022.

It is a super-2 number, since 2×220023320² = 96820522687644800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 220023295 and 220023304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220023329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27719 + ... + 34761.

It is an arithmetic number, because the mean of its divisors is an integer number (8558460).

Almost surely, 2^220023320 is an apocalyptic number.

220023320 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 220023320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273870720).

220023320 is an abundant number, since it is smaller than the sum of its proper divisors (327718120).

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

220023320 is a wasteful number, since it uses less digits than its factorization.

220023320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7136 (or 7132 counting only the distinct ones).

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

The square root of 220023320 is about 14833.1830704000. The cubic root of 220023320 is about 603.7024029908.

Adding to 220023320 its reverse (23320022), we get a palindrome (243343342).

The spelling of 220023320 in words is "two hundred twenty million, twenty-three thousand, three hundred twenty".