2209579220 has 48 divisors (see below), whose sum is σ = 4678128000. Its totient is φ = 876620160.

The previous prime is 2209579213. The next prime is 2209579241. The reversal of 2209579220 is 229759022.

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, 2167871 + ... + 2168889.

It is an arithmetic number, because the mean of its divisors is an integer number (97461000).

Almost surely, 2^2209579220 is an apocalyptic number.

2209579220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2209579220 is an abundant number, since it is smaller than the sum of its proper divisors (2468548780).

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

2209579220 is a wasteful number, since it uses less digits than its factorization.

2209579220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1808 (or 1806 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 2209579220 is about 47006.1615110190. The cubic root of 2209579220 is about 1302.4763881794.

The spelling of 2209579220 in words is "two billion, two hundred nine million, five hundred seventy-nine thousand, two hundred twenty".