2105994 has 32 divisors (see below), whose sum is σ = 4867776. Its totient is φ = 600320.

The previous prime is 2105993. The next prime is 2106019. The reversal of 2105994 is 4995012.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2105993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184 + ... + 2060.

It is an arithmetic number, because the mean of its divisors is an integer number (152118).

2^2105994 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2105994, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2433888).

2105994 is an abundant number, since it is smaller than the sum of its proper divisors (2761782).

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

2105994 is a wasteful number, since it uses less digits than its factorization.

2105994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1910.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 2105994 is about 1451.2043274467. The cubic root of 2105994 is about 128.1796387227.

The spelling of 2105994 in words is "two million, one hundred five thousand, nine hundred ninety-four".