18680341 has 4 divisors (see below), whose sum is σ = 18689184. Its totient is φ = 18671500.

The previous prime is 18680323. The next prime is 18680351. The reversal of 18680341 is 14308681.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 18680341 - 2¹¹ = 18678293 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18680351) 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, 816 + ... + 6166.

It is an arithmetic number, because the mean of its divisors is an integer number (4672296).

Almost surely, 2^18680341 is an apocalyptic number.

It is an amenable number.

18680341 is a deficient number, since it is larger than the sum of its proper divisors (8843).

18680341 is an equidigital number, since it uses as much as digits as its factorization.

18680341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8842.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 18680341 is about 4322.0760058102. The cubic root of 18680341 is about 265.3352396618.

The spelling of 18680341 in words is "eighteen million, six hundred eighty thousand, three hundred forty-one".