8020220 has 48 divisors (see below), whose sum is σ = 18369120. Its totient is φ = 2923776.

The previous prime is 8020183. The next prime is 8020237. The reversal of 8020220 is 220208.

8020220 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 8020195 and 8020204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28199 + ... + 28481.

It is an arithmetic number, because the mean of its divisors is an integer number (382690).

Almost surely, 2^8020220 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 8020220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9184560).

8020220 is an abundant number, since it is smaller than the sum of its proper divisors (10348900).

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

8020220 is a wasteful number, since it uses less digits than its factorization.

8020220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414 (or 412 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 8020220 is about 2831.9992937852. Note that the first 3 decimals coincide. The cubic root of 8020220 is about 200.1683582378.

Adding to 8020220 its reverse (220208), we get a palindrome (8240428).

The spelling of 8020220 in words is "eight million, twenty thousand, two hundred twenty".