2099888 has 20 divisors (see below), whose sum is σ = 4650000. Its totient is φ = 899904.

The previous prime is 2099887. The next prime is 2099893. The reversal of 2099888 is 8889902.

It is a super-2 number, since 2×2099888² = 8819059225088, which contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (2099887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9263 + ... + 9486.

It is an arithmetic number, because the mean of its divisors is an integer number (232500).

2^2099888 is an apocalyptic number.

2099888 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2099888 is an abundant number, since it is smaller than the sum of its proper divisors (2550112).

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

2099888 is a wasteful number, since it uses less digits than its factorization.

2099888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18764 (or 18758 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 44.

The square root of 2099888 is about 1449.0990304324. The cubic root of 2099888 is about 128.0556398731.

The spelling of 2099888 in words is "two million, ninety-nine thousand, eight hundred eighty-eight".