8245220 has 24 divisors (see below), whose sum is σ = 17527104. Its totient is φ = 3257696.

The previous prime is 8245219. The next prime is 8245231. The reversal of 8245220 is 225428.

8245220 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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, 824 + ... + 4143.

It is an arithmetic number, because the mean of its divisors is an integer number (730296).

Almost surely, 2^8245220 is an apocalyptic number.

It is an amenable number.

8245220 is an abundant number, since it is smaller than the sum of its proper divisors (9281884).

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

8245220 is a wasteful number, since it uses less digits than its factorization.

8245220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5059 (or 5057 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 8245220 is about 2871.4491115115. The cubic root of 8245220 is about 202.0229689922.

The spelling of 8245220 in words is "eight million, two hundred forty-five thousand, two hundred twenty".