220280 has 16 divisors (see below), whose sum is σ = 495720. Its totient is φ = 88096.

The previous prime is 220279. The next prime is 220291. The reversal of 220280 is 82022.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 220280.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2714 + ... + 2793.

2²²⁰²⁸⁰ is an apocalyptic number.

220280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220280 is an abundant number, since it is smaller than the sum of its proper divisors (275440).

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

220280 is a wasteful number, since it uses less digits than its factorization.

220280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5518 (or 5514 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 220280 is about 469.3399620744. The cubic root of 220280 is about 60.3937072227.

The spelling of 220280 in words is "two hundred twenty thousand, two hundred eighty".