223560 has 96 divisors (see below), whose sum is σ = 786240. Its totient is φ = 57024.

The previous prime is 223549. The next prime is 223577. The reversal of 223560 is 65322.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nialpdrome in base 6.

It is an unprimeable number.

223560 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 in 23 ways as a sum of consecutive naturals, for example, 9709 + ... + 9731.

It is an arithmetic number, because the mean of its divisors is an integer number (8190).

2²²³⁵⁶⁰ is an apocalyptic number.

223560 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 practical number, because each smaller number is the sum of distinct divisors of 223560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (393120).

223560 is an abundant number, since it is smaller than the sum of its proper divisors (562680).

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

223560 is a wasteful number, since it uses less digits than its factorization.

223560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49 (or 33 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 223560 is about 472.8213193163. The cubic root of 223560 is about 60.6919885170.

Adding to 223560 its reverse (65322), we get a palindrome (288882).

The spelling of 223560 in words is "two hundred twenty-three thousand, five hundred sixty".