2090938191 has 8 divisors (see below), whose sum is σ = 2863266864. Its totient is φ = 1356284160.

The previous prime is 2090938153. The next prime is 2090938207. The reversal of 2090938191 is 1918390902.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2090938191 - 2⁷ = 2090938063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2090938121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9418530 + ... + 9418751.

It is an arithmetic number, because the mean of its divisors is an integer number (357908358).

Almost surely, 2^2090938191 is an apocalyptic number.

2090938191 is a deficient number, since it is larger than the sum of its proper divisors (772328673).

2090938191 is a wasteful number, since it uses less digits than its factorization.

2090938191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18837321.

The product of its (nonzero) digits is 34992, while the sum is 42.

The square root of 2090938191 is about 45726.7776144351. Note that the first 3 decimals coincide. The cubic root of 2090938191 is about 1278.7345466629.

The spelling of 2090938191 in words is "two billion, ninety million, nine hundred thirty-eight thousand, one hundred ninety-one".