2094397209 has 16 divisors (see below), whose sum is σ = 3103900800. Its totient is φ = 1395774288.

The previous prime is 2094397187. The next prime is 2094397211. The reversal of 2094397209 is 9027934902.

2094397209 is a `hidden beast` number, since 2 + 0 + 9 + 439 + 7 + 209 = 666.

It is not a de Polignac number, because 2094397209 - 2¹⁷ = 2094266137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2094397289) 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, 75172 + ... + 99194.

It is an arithmetic number, because the mean of its divisors is an integer number (193993800).

Almost surely, 2^2094397209 is an apocalyptic number.

It is an amenable number.

2094397209 is a deficient number, since it is larger than the sum of its proper divisors (1009503591).

2094397209 is a wasteful number, since it uses less digits than its factorization.

2094397209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27261 (or 27255 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The square root of 2094397209 is about 45764.5846588822. The cubic root of 2094397209 is about 1279.4392907511.

The spelling of 2094397209 in words is "two billion, ninety-four million, three hundred ninety-seven thousand, two hundred nine".