8285220 has 96 divisors (see below), whose sum is σ = 26275200. Its totient is φ = 2166912.

The previous prime is 8285201. The next prime is 8285227. The reversal of 8285220 is 225828.

8285220 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (8285227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36066 + ... + 36294.

It is an arithmetic number, because the mean of its divisors is an integer number (273700).

Almost surely, 2^8285220 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 8285220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13137600).

8285220 is an abundant number, since it is smaller than the sum of its proper divisors (17989980).

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

8285220 is a wasteful number, since it uses less digits than its factorization.

8285220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314 (or 306 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 8285220 is about 2878.4058087768. The cubic root of 8285220 is about 202.3491331707.

The spelling of 8285220 in words is "eight million, two hundred eighty-five thousand, two hundred twenty".