18350 has 12 divisors (see below), whose sum is σ = 34224. Its totient is φ = 7320.

The previous prime is 18341. The next prime is 18353. The reversal of 18350 is 5381.

It is a plaindrome in base 16.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18353) by changing a digit.

18350 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 134 + ... + 233.

It is an arithmetic number, because the mean of its divisors is an integer number (2852).

2¹⁸³⁵⁰ is an apocalyptic number.

18350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18350 is a deficient number, since it is larger than the sum of its proper divisors (15874).

18350 is a wasteful number, since it uses less digits than its factorization.

18350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379 (or 374 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 18350 is about 135.4621718414. The cubic root of 18350 is about 26.3761875883.

The spelling of 18350 in words is "eighteen thousand, three hundred fifty".