2109418 has 8 divisors (see below), whose sum is σ = 3330720. Its totient is φ = 999180.

The previous prime is 2109403. The next prime is 2109421. The reversal of 2109418 is 8149012.

It is a happy number.

2109418 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 2109392 and 2109401.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27718 + ... + 27793.

It is an arithmetic number, because the mean of its divisors is an integer number (416340).

2^2109418 is an apocalyptic number.

2109418 is a deficient number, since it is larger than the sum of its proper divisors (1221302).

2109418 is a wasteful number, since it uses less digits than its factorization.

2109418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55532.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 2109418 is about 1452.3835581554. The cubic root of 2109418 is about 128.2490674492.

It can be divided in two parts, 21094 and 18, that added together give a palindrome (21112).

The spelling of 2109418 in words is "two million, one hundred nine thousand, four hundred eighteen".