18314386 has 8 divisors (see below), whose sum is σ = 27848124. Its totient is φ = 9031680.

The previous prime is 18314377. The next prime is 18314393. The reversal of 18314386 is 68341381.

18314386 = T₁₉₈ + T₁₉₉ + ... + T₄₈₉.

It can be written as a sum of positive squares in 2 ways, for example, as 17850625 + 463761 = 4225^2 + 681^2 .

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

It is a super-3 number, since 3×18314386³ (a number of 23 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62575 + ... + 62866.

Almost surely, 2^18314386 is an apocalyptic number.

18314386 is a deficient number, since it is larger than the sum of its proper divisors (9533738).

18314386 is a wasteful number, since it uses less digits than its factorization.

18314386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125516.

The product of its digits is 13824, while the sum is 34.

The square root of 18314386 is about 4279.5310490754. The cubic root of 18314386 is about 263.5911274888.

The spelling of 18314386 in words is "eighteen million, three hundred fourteen thousand, three hundred eighty-six".