220468 has 6 divisors (see below), whose sum is σ = 385826. Its totient is φ = 110232.

The previous prime is 220447. The next prime is 220469. The reversal of 220468 is 864022.

It can be written as a sum of positive squares in only one way, i.e., 219024 + 1444 = 468^2 + 38^2 .

It is a super-2 number, since 2×220468² = 97212278048, which contains 22 as substring.

It is a congruent number.

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

220468 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27555 + ... + 27562.

2²²⁰⁴⁶⁸ is an apocalyptic number.

It is an amenable number.

220468 is a deficient number, since it is larger than the sum of its proper divisors (165358).

220468 is a wasteful number, since it uses less digits than its factorization.

220468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55121 (or 55119 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 220468 is about 469.5402006218. The cubic root of 220468 is about 60.4108835262.

The spelling of 220468 in words is "two hundred twenty thousand, four hundred sixty-eight".