854220 has 48 divisors (see below), whose sum is σ = 2499840. Its totient is φ = 217536.

The previous prime is 854213. The next prime is 854257. The reversal of 854220 is 22458.

It is a nialpdrome in base 10.

It is an unprimeable number.

854220 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 15 ways as a sum of consecutive naturals, for example, 1071 + ... + 1689.

It is an arithmetic number, because the mean of its divisors is an integer number (52080).

2⁸⁵⁴²²⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 854220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1249920).

854220 is an abundant number, since it is smaller than the sum of its proper divisors (1645620).

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

854220 is a wasteful number, since it uses less digits than its factorization.

854220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654 (or 652 counting only the distinct ones).

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

The square root of 854220 is about 924.2402285120. The cubic root of 854220 is about 94.8833286097.

Adding to 854220 its reverse (22458), we get a palindrome (876678).

The spelling of 854220 in words is "eight hundred fifty-four thousand, two hundred twenty".