Adding to 220620 its reverse (26022), we get a palindrome (246642).
220620 is nontrivially palindromic in base 9.
220620 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 220620.
It is an unprimeable number.
220620 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
2220620 is an apocalyptic number.
220620 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 pseudoperfect number, because it is the sum of a subset of its proper divisors.
220620 is a wasteful number, since it uses less digits than its factorization.
220620 is an odious number, because the sum of its binary digits is odd.
The square root of 220620 is about 469.7020332083. The cubic root of 220620 is about 60.4247636129.
The spelling of 220620 in words is "two hundred twenty thousand, six hundred twenty".