18022179 has 16 divisors (see below), whose sum is σ = 28657152. Its totient is φ = 9850368.

The previous prime is 18022177. The next prime is 18022201. The reversal of 18022179 is 97122081.

It is not a de Polignac number, because 18022179 - 2¹ = 18022177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18022171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18174 + ... + 19139.

It is an arithmetic number, because the mean of its divisors is an integer number (1791072).

Almost surely, 2^18022179 is an apocalyptic number.

18022179 is a deficient number, since it is larger than the sum of its proper divisors (10634973).

18022179 is a wasteful number, since it uses less digits than its factorization.

18022179 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37346.

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 18022179 is about 4245.2537026661. The cubic root of 18022179 is about 262.1817349141.

It can be divided in two parts, 180221 and 79, that added together give a triangular number (180300 = T₆₀₀).

The spelling of 18022179 in words is "eighteen million, twenty-two thousand, one hundred seventy-nine".