2109884 has 12 divisors (see below), whose sum is σ = 4219824. Its totient is φ = 904224.

The previous prime is 2109871. The next prime is 2109889. The reversal of 2109884 is 4889012.

It is a happy number.

2109884 is an admirable number.

It is a super-2 number, since 2×2109884² = 8903220986912, which contains 22 as substring.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2109884.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2109889) 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, 37649 + ... + 37704.

It is an arithmetic number, because the mean of its divisors is an integer number (351652).

2^2109884 is an apocalyptic number.

It is an amenable number.

2109884 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2109884 is a wasteful number, since it uses less digits than its factorization.

2109884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75364 (or 75362 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 2109884 is about 1452.5439752379. The cubic root of 2109884 is about 128.2585107594.

The spelling of 2109884 in words is "two million, one hundred nine thousand, eight hundred eighty-four".