18466 has 8 divisors (see below), whose sum is σ = 31680. Its totient is φ = 7908.

The previous prime is 18461. The next prime is 18481. The reversal of 18466 is 66481.

18466 = T₃₁ + T₃₂ + ... + T₅₁.

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

It is a self number, because there is not a number n which added to its sum of digits gives 18466.

It is not an unprimeable number, because it can be changed into a prime (18461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 646 + ... + 673.

It is an arithmetic number, because the mean of its divisors is an integer number (3960).

2¹⁸⁴⁶⁶ is an apocalyptic number.

18466 is a deficient number, since it is larger than the sum of its proper divisors (13214).

18466 is a wasteful number, since it uses less digits than its factorization.

18466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1328.

The product of its digits is 1152, while the sum is 25.

The square root of 18466 is about 135.8896611225. The cubic root of 18466 is about 26.4316501335.

It can be divided in two parts, 18 and 466, that added together give a palindrome (484).

The spelling of 18466 in words is "eighteen thousand, four hundred sixty-six".