2105868 has 24 divisors (see below), whose sum is σ = 4960368. Its totient is φ = 695296.

The previous prime is 2105863. The next prime is 2105881. The reversal of 2105868 is 8685012.

It is a d-powerful number, because it can be written as 2¹³ + 1 + 0 + 5 + 8³ + 6 + 8⁷ .

It is not an unprimeable number, because it can be changed into a prime (2105863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 580 + ... + 2132.

It is an arithmetic number, because the mean of its divisors is an integer number (206682).

2^2105868 is an apocalyptic number.

It is an amenable number.

2105868 is an abundant number, since it is smaller than the sum of its proper divisors (2854500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2105868 is a wasteful number, since it uses less digits than its factorization.

2105868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1673 (or 1671 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 2105868 is about 1451.1609145784. The cubic root of 2105868 is about 128.1770823753.

The spelling of 2105868 in words is "two million, one hundred five thousand, eight hundred sixty-eight".