2099994 has 48 divisors (see below), whose sum is σ = 4831200. Its totient is φ = 606528.

The previous prime is 2099963. The next prime is 2100001. The reversal of 2099994 is 4999902.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19212 + ... + 19320.

It is an arithmetic number, because the mean of its divisors is an integer number (100650).

2^2099994 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2099994, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2415600).

2099994 is an abundant number, since it is smaller than the sum of its proper divisors (2731206).

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

2099994 is a wasteful number, since it uses less digits than its factorization.

2099994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159 (or 146 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 42.

The square root of 2099994 is about 1449.1356044208. The cubic root of 2099994 is about 128.0577945387.

The spelling of 2099994 in words is "two million, ninety-nine thousand, nine hundred ninety-four".