2209869189 has 16 divisors (see below), whose sum is σ = 3571506240. Its totient is φ = 1339314480.

The previous prime is 2209869173. The next prime is 2209869217. The reversal of 2209869189 is 9819689022.

It is not a de Polignac number, because 2209869189 - 2⁴ = 2209869173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2209869149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3720022 + ... + 3720615.

It is an arithmetic number, because the mean of its divisors is an integer number (223219140).

Almost surely, 2^2209869189 is an apocalyptic number.

It is an amenable number.

2209869189 is a deficient number, since it is larger than the sum of its proper divisors (1361637051).

2209869189 is a wasteful number, since it uses less digits than its factorization.

2209869189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7440657 (or 7440651 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 54.

The square root of 2209869189 is about 47009.2457820799. The cubic root of 2209869189 is about 1302.5333615091.

The spelling of 2209869189 in words is "two billion, two hundred nine million, eight hundred sixty-nine thousand, one hundred eighty-nine".