2099668 has 12 divisors (see below), whose sum is σ = 3703392. Its totient is φ = 1041560.

The previous prime is 2099659. The next prime is 2099677. The reversal of 2099668 is 8669902.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2099659) and next prime (2099677).

It is a self number, because there is not a number n which added to its sum of digits gives 2099668.

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 3 ways as a sum of consecutive naturals, for example, 1480 + ... + 2527.

It is an arithmetic number, because the mean of its divisors is an integer number (308616).

2^2099668 is an apocalyptic number.

It is an amenable number.

2099668 is a deficient number, since it is larger than the sum of its proper divisors (1603724).

2099668 is a wasteful number, since it uses less digits than its factorization.

2099668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4142 (or 4140 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 2099668 is about 1449.0231192082. The cubic root of 2099668 is about 128.0511676942.

The spelling of 2099668 in words is "two million, ninety-nine thousand, six hundred sixty-eight".