2109396 has 12 divisors (see below), whose sum is σ = 4921952. Its totient is φ = 703128.

The previous prime is 2109391. The next prime is 2109403. The reversal of 2109396 is 6939012.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2109391) 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, 87880 + ... + 87903.

2^2109396 is an apocalyptic number.

It is an amenable number.

2109396 is an abundant number, since it is smaller than the sum of its proper divisors (2812556).

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

2109396 is a wasteful number, since it uses less digits than its factorization.

2109396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175790 (or 175788 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 2109396 is about 1452.3759843787. The cubic root of 2109396 is about 128.2486215934.

The spelling of 2109396 in words is "two million, one hundred nine thousand, three hundred ninety-six".