18027384 has 16 divisors (see below), whose sum is σ = 45068520. Its totient is φ = 6009120.

The previous prime is 18027379. The next prime is 18027403. The reversal of 18027384 is 48372081.

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, 375547 + ... + 375594.

Almost surely, 2^18027384 is an apocalyptic number.

It is an amenable number.

18027384 is an abundant number, since it is smaller than the sum of its proper divisors (27041136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18027384 is a wasteful number, since it uses less digits than its factorization.

18027384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751150 (or 751146 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 18027384 is about 4245.8666959762. The cubic root of 18027384 is about 262.2069727904.

The spelling of 18027384 in words is "eighteen million, twenty-seven thousand, three hundred eighty-four".