2110409 has 4 divisors (see below), whose sum is σ = 2411904. Its totient is φ = 1808916.

The previous prime is 2110399. The next prime is 2110439. The reversal of 2110409 is 9040112.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2110409 - 2⁸ = 2110153 is a prime.

It is a super-2 number, since 2×2110409² = 8907652294562, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2110439) 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, 150737 + ... + 150750.

It is an arithmetic number, because the mean of its divisors is an integer number (602976).

2^2110409 is an apocalyptic number.

It is an amenable number.

2110409 is a deficient number, since it is larger than the sum of its proper divisors (301495).

2110409 is an equidigital number, since it uses as much as digits as its factorization.

2110409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301494.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 2110409 is about 1452.7246814176. The cubic root of 2110409 is about 128.2691480162.

The spelling of 2110409 in words is "two million, one hundred ten thousand, four hundred nine".