18814 has 8 divisors (see below), whose sum is σ = 29520. Its totient is φ = 8976.

The previous prime is 18803. The next prime is 18839. The reversal of 18814 is 41881.

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

It is a nialpdrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159 + ... + 250.

It is an arithmetic number, because the mean of its divisors is an integer number (3690).

2¹⁸⁸¹⁴ is an apocalyptic number.

18814 is a deficient number, since it is larger than the sum of its proper divisors (10706).

18814 is a wasteful number, since it uses less digits than its factorization.

18814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434.

The product of its digits is 256, while the sum is 22.

The square root of 18814 is about 137.1641352541. The cubic root of 18814 is about 26.5966566360.

It can be divided in two parts, 188 and 14, that added together give a palindrome (202).

The spelling of 18814 in words is "eighteen thousand, eight hundred fourteen".