2140840205 has 32 divisors (see below), whose sum is σ = 2959165440. Its totient is φ = 1456485120.

The previous prime is 2140840199. The next prime is 2140840237. The reversal of 2140840205 is 5020480412.

It is a happy number.

It is not a de Polignac number, because 2140840205 - 2⁸ = 2140839949 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 4469156 + ... + 4469634.

It is an arithmetic number, because the mean of its divisors is an integer number (92473920).

Almost surely, 2^2140840205 is an apocalyptic number.

It is an amenable number.

2140840205 is a deficient number, since it is larger than the sum of its proper divisors (818325235).

2140840205 is a wasteful number, since it uses less digits than its factorization.

2140840205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1229.

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 2140840205 is about 46269.2144411379. The cubic root of 2140840205 is about 1288.8273711789.

The spelling of 2140840205 in words is "two billion, one hundred forty million, eight hundred forty thousand, two hundred five".