2209785273 has 32 divisors (see below), whose sum is σ = 3482035200. Its totient is φ = 1380250368.

The previous prime is 2209785269. The next prime is 2209785289. The reversal of 2209785273 is 3725879022.

It is not a de Polignac number, because 2209785273 - 2² = 2209785269 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2209780273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91563 + ... + 113151.

It is an arithmetic number, because the mean of its divisors is an integer number (108813600).

Almost surely, 2^2209785273 is an apocalyptic number.

It is an amenable number.

2209785273 is a deficient number, since it is larger than the sum of its proper divisors (1272249927).

2209785273 is a wasteful number, since it uses less digits than its factorization.

2209785273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21838 (or 21832 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The square root of 2209785273 is about 47008.3532257832. The cubic root of 2209785273 is about 1302.5168741421.

The spelling of 2209785273 in words is "two billion, two hundred nine million, seven hundred eighty-five thousand, two hundred seventy-three".