2099826 has 12 divisors (see below), whose sum is σ = 4549662. Its totient is φ = 699936.

The previous prime is 2099821. The next prime is 2099827. The reversal of 2099826 is 6289902.

It can be written as a sum of positive squares in only one way, i.e., 2099601 + 225 = 1449^2 + 15^2 .

It is a d-powerful number, because it can be written as 2⁷ + 0 + 9 + 9³ + 8³ + 2²¹ + 6⁴ .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2099821) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 58311 + ... + 58346.

2^2099826 is an apocalyptic number.

2099826 is an abundant number, since it is smaller than the sum of its proper divisors (2449836).

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

2099826 is a wasteful number, since it uses less digits than its factorization.

2099826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116665 (or 116662 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 2099826 is about 1449.0776376716. The cubic root of 2099826 is about 128.0543795634.

The spelling of 2099826 in words is "two million, ninety-nine thousand, eight hundred twenty-six".