218260 has 24 divisors (see below), whose sum is σ = 524160. Its totient is φ = 74784.

The previous prime is 218249. The next prime is 218279. The reversal of 218260 is 62812.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 640 + ... + 919.

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

2²¹⁸²⁶⁰ is an apocalyptic number.

218260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

218260 is an abundant number, since it is smaller than the sum of its proper divisors (305900).

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

218260 is a wasteful number, since it uses less digits than its factorization.

218260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1575 (or 1573 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 218260 is about 467.1830476376. The cubic root of 218260 is about 60.2085336482.

It can be divided in two parts, 21 and 8260, that added together give a square (8281 = 91²).

The spelling of 218260 in words is "two hundred eighteen thousand, two hundred sixty".