2099538 has 48 divisors (see below), whose sum is σ = 5478720. Its totient is φ = 567648.

The previous prime is 2099521. The next prime is 2099543. The reversal of 2099538 is 8359902.

It is a d-powerful number, because it can be written as 2¹¹ + 0 + 9 + 9² + 5 + 3⁵ + 8⁷ .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1956 + ... + 2832.

It is an arithmetic number, because the mean of its divisors is an integer number (114140).

2^2099538 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2099538, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2739360).

2099538 is an abundant number, since it is smaller than the sum of its proper divisors (3379182).

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

2099538 is a wasteful number, since it uses less digits than its factorization.

2099538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911 (or 908 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 2099538 is about 1448.9782607065. The cubic root of 2099538 is about 128.0485248961.

The spelling of 2099538 in words is "two million, ninety-nine thousand, five hundred thirty-eight".