220884 has 24 divisors (see below), whose sum is σ = 524160. Its totient is φ = 72384.

The previous prime is 220879. The next prime is 220889. The reversal of 220884 is 488022.

It is an interprime number because it is at equal distance from previous prime (220879) and next prime (220889).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220889) by changing a digit.

220884 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 832 + ... + 1064.

It is an arithmetic number, because the mean of its divisors is an integer number (21840).

2²²⁰⁸⁸⁴ is an apocalyptic number.

It is an amenable number.

220884 is an abundant number, since it is smaller than the sum of its proper divisors (303276).

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

220884 is a wasteful number, since it uses less digits than its factorization.

220884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319 (or 317 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 220884 is about 469.9829784152. The cubic root of 220884 is about 60.4488559873.

The spelling of 220884 in words is "two hundred twenty thousand, eight hundred eighty-four".