2105648 has 20 divisors (see below), whose sum is σ = 4123248. Its totient is φ = 1041600.

The previous prime is 2105641. The next prime is 2105669. The reversal of 2105648 is 8465012.

It is not an unprimeable number, because it can be changed into a prime (2105641) 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 3 ways as a sum of consecutive naturals, for example, 965 + ... + 2267.

2^2105648 is an apocalyptic number.

It is an amenable number.

2105648 is a deficient number, since it is larger than the sum of its proper divisors (2017600).

2105648 is a wasteful number, since it uses less digits than its factorization.

2105648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1412 (or 1406 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 2105648 is about 1451.0851112185. The cubic root of 2105648 is about 128.1726186672.

The spelling of 2105648 in words is "two million, one hundred five thousand, six hundred forty-eight".