220466 has 4 divisors (see below), whose sum is σ = 330702. Its totient is φ = 110232.

The previous prime is 220447. The next prime is 220469. The reversal of 220466 is 664022.

220466 = 130² + 131² + ... + 141².

220466 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 664022 = 2 ⋅332011.

It can be written as a sum of positive squares in only one way, i.e., 112225 + 108241 = 335^2 + 329^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 220466.

It is not an unprimeable number, because it can be changed into a prime (220469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55115 + ... + 55118.

2²²⁰⁴⁶⁶ is an apocalyptic number.

220466 is a deficient number, since it is larger than the sum of its proper divisors (110236).

220466 is a wasteful number, since it uses less digits than its factorization.

220466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110235.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 220466 is about 469.5380708739. The cubic root of 220466 is about 60.4107008510.

Adding to 220466 its reverse (664022), we get a palindrome (884488).

Subtracting 220466 from its reverse (664022), we obtain a square (443556 = 666²).

It can be divided in two parts, 220 and 466, that added together give a palindrome (686).

The spelling of 220466 in words is "two hundred twenty thousand, four hundred sixty-six".