18834 has 16 divisors (see below), whose sum is σ = 39072. Its totient is φ = 6048.

The previous prime is 18803. The next prime is 18839. The reversal of 18834 is 43881.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (18839) 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, 222 + ... + 294.

It is an arithmetic number, because the mean of its divisors is an integer number (2442).

2¹⁸⁸³⁴ is an apocalyptic number.

18834 is an abundant number, since it is smaller than the sum of its proper divisors (20238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19536).

18834 is a wasteful number, since it uses less digits than its factorization.

18834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121.

The product of its digits is 768, while the sum is 24.

The square root of 18834 is about 137.2370212443. The cubic root of 18834 is about 26.6060777188.

It can be divided in two parts, 188 and 34, that added together give a palindrome (222).

The spelling of 18834 in words is "eighteen thousand, eight hundred thirty-four".