2099880 has 96 divisors (see below), whose sum is σ = 7207200. Its totient is φ = 528768.

The previous prime is 2099863. The next prime is 2099887. The reversal of 2099880 is 889902.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 23 ways as a sum of consecutive naturals, for example, 6687 + ... + 6993.

It is an arithmetic number, because the mean of its divisors is an integer number (75075).

2^2099880 is an apocalyptic number.

2099880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2099880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3603600).

2099880 is an abundant number, since it is smaller than the sum of its proper divisors (5107320).

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

2099880 is a wasteful number, since it uses less digits than its factorization.

2099880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343 (or 336 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 2099880 is about 1449.0962700939. The cubic root of 2099880 is about 128.0554772539.

The spelling of 2099880 in words is "two million, ninety-nine thousand, eight hundred eighty".