18113386 has 8 divisors (see below), whose sum is σ = 27682884. Its totient is φ = 8885760.

The previous prime is 18113353. The next prime is 18113411. The reversal of 18113386 is 68331181.

It can be written as a sum of positive squares in 2 ways, for example, as 15848361 + 2265025 = 3981^2 + 1505^2 .

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

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, 85335 + ... + 85546.

Almost surely, 2^18113386 is an apocalyptic number.

18113386 is a deficient number, since it is larger than the sum of its proper divisors (9569498).

18113386 is a wasteful number, since it uses less digits than its factorization.

18113386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170936.

The product of its digits is 3456, while the sum is 31.

The square root of 18113386 is about 4255.9823777831. The cubic root of 18113386 is about 262.6232757336.

The spelling of 18113386 in words is "eighteen million, one hundred thirteen thousand, three hundred eighty-six".