18910 has 16 divisors (see below), whose sum is σ = 35712. Its totient is φ = 7200.

The previous prime is 18899. The next prime is 18911. The reversal of 18910 is 1981.

18910 is nontrivially palindromic in base 11.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 280 + ... + 340.

It is an arithmetic number, because the mean of its divisors is an integer number (2232).

2¹⁸⁹¹⁰ is an apocalyptic number.

18910 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18910 is a deficient number, since it is larger than the sum of its proper divisors (16802).

18910 is a wasteful number, since it uses less digits than its factorization.

18910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99.

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 18910 is about 137.5136356875. The cubic root of 18910 is about 26.6418171287.

It can be divided in two parts, 1 and 8910, that added together give a triangular number (8911 = T₁₃₃).

The spelling of 18910 in words is "eighteen thousand, nine hundred ten".