220308210 has 48 divisors (see below), whose sum is σ = 582206040. Its totient is φ = 57784320.

The previous prime is 220308203. The next prime is 220308229. The reversal of 220308210 is 12803022.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 43125489 + 177182721 = 6567^2 + 13311^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

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 23 ways as a sum of consecutive naturals, for example, 14575 + ... + 25554.

Almost surely, 2^220308210 is an apocalyptic number.

220308210 is an abundant number, since it is smaller than the sum of its proper divisors (361897830).

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

220308210 is a wasteful number, since it uses less digits than its factorization.

220308210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40203 (or 40200 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 220308210 is about 14842.7830948242. The cubic root of 220308210 is about 603.9628520492.

The spelling of 220308210 in words is "two hundred twenty million, three hundred eight thousand, two hundred ten".