8218210 has 64 divisors (see below), whose sum is σ = 19885824. Its totient is φ = 2361600.

The previous prime is 8218207. The next prime is 8218229. The reversal of 8218210 is 128128.

It is a Harshad number since it is a multiple of its sum of digits (22).

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 31 ways as a sum of consecutive naturals, for example, 9600 + ... + 10420.

It is an arithmetic number, because the mean of its divisors is an integer number (310716).

Almost surely, 2^8218210 is an apocalyptic number.

8218210 is an abundant number, since it is smaller than the sum of its proper divisors (11667614).

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

8218210 is a wasteful number, since it uses less digits than its factorization.

8218210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 859.

The product of its (nonzero) digits is 256, while the sum is 22.

The square root of 8218210 is about 2866.7420532723. The cubic root of 8218210 is about 201.8021295396.

The spelling of 8218210 in words is "eight million, two hundred eighteen thousand, two hundred ten".