2040189617 has 4 divisors (see below), whose sum is σ = 2048128356. Its totient is φ = 2032250880.

The previous prime is 2040189607. The next prime is 2040189637. The reversal of 2040189617 is 7169810402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1000836496 + 1039353121 = 31636^2 + 32239^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2040189617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2040189607) 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 3 ways as a sum of consecutive naturals, for example, 3968984 + ... + 3969497.

It is an arithmetic number, because the mean of its divisors is an integer number (512032089).

Almost surely, 2^2040189617 is an apocalyptic number.

It is an amenable number.

2040189617 is a deficient number, since it is larger than the sum of its proper divisors (7938739).

2040189617 is an equidigital number, since it uses as much as digits as its factorization.

2040189617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7938738.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 2040189617 is about 45168.4582092415. The cubic root of 2040189617 is about 1268.3044347340.

The spelling of 2040189617 in words is "two billion, forty million, one hundred eighty-nine thousand, six hundred seventeen".