220854 has 8 divisors (see below), whose sum is σ = 441720. Its totient is φ = 73616.

The previous prime is 220841. The next prime is 220859. The reversal of 220854 is 458022.

It is a sphenic number, since it is the product of 3 distinct primes.

220854 is an admirable number.

It is an Ulam number.

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 220854.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220859) by changing a digit.

220854 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 3 ways as a sum of consecutive naturals, for example, 18399 + ... + 18410.

It is an arithmetic number, because the mean of its divisors is an integer number (55215).

2²²⁰⁸⁵⁴ is an apocalyptic number.

220854 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

220854 is a wasteful number, since it uses less digits than its factorization.

220854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36814.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 220854 is about 469.9510612819. The cubic root of 220854 is about 60.4461191846.

Adding to 220854 its reverse (458022), we get a palindrome (678876).

The spelling of 220854 in words is "two hundred twenty thousand, eight hundred fifty-four".