18341109 has 12 divisors (see below), whose sum is σ = 26653536. Its totient is φ = 12153192.

The previous prime is 18341077. The next prime is 18341117. The reversal of 18341109 is 90114381.

It is not a de Polignac number, because 18341109 - 2⁵ = 18341077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18341129) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4599 + ... + 7604.

It is an arithmetic number, because the mean of its divisors is an integer number (2221128).

Almost surely, 2^18341109 is an apocalyptic number.

It is an amenable number.

18341109 is a deficient number, since it is larger than the sum of its proper divisors (8312427).

18341109 is a wasteful number, since it uses less digits than its factorization.

18341109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12376 (or 12373 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 18341109 is about 4282.6520988752. The cubic root of 18341109 is about 263.7192694218.

The spelling of 18341109 in words is "eighteen million, three hundred forty-one thousand, one hundred nine".