18046385 has 8 divisors (see below), whose sum is σ = 24749376. Its totient is φ = 12374640.

The previous prime is 18046373. The next prime is 18046411. The reversal of 18046385 is 58364081.

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

It is not a de Polignac number, because 18046385 - 2¹² = 18042289 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 515611 = 18046385 / (1 + 8 + 0 + 4 + 6 + 3 + 8 + 5).

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257771 + ... + 257840.

It is an arithmetic number, because the mean of its divisors is an integer number (3093672).

Almost surely, 2^18046385 is an apocalyptic number.

It is an amenable number.

18046385 is a deficient number, since it is larger than the sum of its proper divisors (6702991).

18046385 is an equidigital number, since it uses as much as digits as its factorization.

18046385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515623.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 18046385 is about 4248.1036945913. The cubic root of 18046385 is about 262.2990631586.

The spelling of 18046385 in words is "eighteen million, forty-six thousand, three hundred eighty-five".