2105928239 has 8 divisors (see below), whose sum is σ = 2174508672. Its totient is φ = 2037388320.

The previous prime is 2105928221. The next prime is 2105928247. The reversal of 2105928239 is 9328295012.

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

It is a cyclic number.

It is not a de Polignac number, because 2105928239 - 2¹² = 2105924143 is a prime.

It is a super-2 number, since 2×2105928239² = 8869867495635282242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2105928196 and 2105928205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105928439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123857 + ... + 139829.

It is an arithmetic number, because the mean of its divisors is an integer number (271813584).

Almost surely, 2^2105928239 is an apocalyptic number.

2105928239 is a deficient number, since it is larger than the sum of its proper divisors (68580433).

2105928239 is a wasteful number, since it uses less digits than its factorization.

2105928239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20257.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 2105928239 is about 45890.3937551205. The cubic root of 2105928239 is about 1281.7830454523.

The spelling of 2105928239 in words is "two billion, one hundred five million, nine hundred twenty-eight thousand, two hundred thirty-nine".