2105874 has 12 divisors (see below), whose sum is σ = 4562766. Its totient is φ = 701952.

The previous prime is 2105863. The next prime is 2105881. The reversal of 2105874 is 4785012.

It can be written as a sum of positive squares in only one way, i.e., 1625625 + 480249 = 1275^2 + 693^2 .

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 58479 + ... + 58514.

2^2105874 is an apocalyptic number.

2105874 is an abundant number, since it is smaller than the sum of its proper divisors (2456892).

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

2105874 is a wasteful number, since it uses less digits than its factorization.

2105874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117001 (or 116998 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 2105874 is about 1451.1629818873. The cubic root of 2105874 is about 128.1772041084.

It can be divided in two parts, 210 and 5874, that added together give a square (6084 = 78²).

The spelling of 2105874 in words is "two million, one hundred five thousand, eight hundred seventy-four".