18558214 has 8 divisors (see below), whose sum is σ = 28309320. Its totient is φ = 9121776.

The previous prime is 18558179. The next prime is 18558233. The reversal of 18558214 is 41285581.

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 18558214.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78519 + ... + 78754.

It is an arithmetic number, because the mean of its divisors is an integer number (3538665).

Almost surely, 2^18558214 is an apocalyptic number.

18558214 is a deficient number, since it is larger than the sum of its proper divisors (9751106).

18558214 is a wasteful number, since it uses less digits than its factorization.

18558214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157334.

The product of its digits is 12800, while the sum is 34.

The square root of 18558214 is about 4307.9245582995. The cubic root of 18558214 is about 264.7557450314.

The spelling of 18558214 in words is "eighteen million, five hundred fifty-eight thousand, two hundred fourteen".