18380935 has 4 divisors (see below), whose sum is σ = 22057128. Its totient is φ = 14704744.

The previous prime is 18380917. The next prime is 18380941. The reversal of 18380935 is 53908381.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 18380935 - 2²¹ = 16283783 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18380894 and 18380903.

It is a congruent number.

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, 1838089 + ... + 1838098.

It is an arithmetic number, because the mean of its divisors is an integer number (5514282).

Almost surely, 2^18380935 is an apocalyptic number.

18380935 is a deficient number, since it is larger than the sum of its proper divisors (3676193).

18380935 is an equidigital number, since it uses as much as digits as its factorization.

18380935 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3676192.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 18380935 is about 4287.2992664380. The cubic root of 18380935 is about 263.9100119913.

It can be divided in two parts, 183 and 80935, that added together give a palindrome (81118).

The spelling of 18380935 in words is "eighteen million, three hundred eighty thousand, nine hundred thirty-five".