8196220 has 24 divisors (see below), whose sum is σ = 18118800. Its totient is φ = 3105792.

The previous prime is 8196217. The next prime is 8196233. The reversal of 8196220 is 226918.

It is a happy number.

It is an Ulam number.

It is a congruent number.

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, 10405 + ... + 11164.

It is an arithmetic number, because the mean of its divisors is an integer number (754950).

Almost surely, 2^8196220 is an apocalyptic number.

It is an amenable number.

8196220 is an abundant number, since it is smaller than the sum of its proper divisors (9922580).

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

8196220 is a wasteful number, since it uses less digits than its factorization.

8196220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21597 (or 21595 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 8196220 is about 2862.9041199453. The cubic root of 8196220 is about 201.6219770595.

The spelling of 8196220 in words is "eight million, one hundred ninety-six thousand, two hundred twenty".