2109804 has 24 divisors (see below), whose sum is σ = 4971120. Its totient is φ = 696384.

The previous prime is 2109799. The next prime is 2109841. The reversal of 2109804 is 4089012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 502 + ... + 2114.

It is an arithmetic number, because the mean of its divisors is an integer number (207130).

2^2109804 is an apocalyptic number.

It is an amenable number.

2109804 is an abundant number, since it is smaller than the sum of its proper divisors (2861316).

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

2109804 is a wasteful number, since it uses less digits than its factorization.

2109804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1729 (or 1727 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 2109804 is about 1452.5164370843. The cubic root of 2109804 is about 128.2568896891.

The spelling of 2109804 in words is "two million, one hundred nine thousand, eight hundred four".