18048384 has 48 divisors (see below), whose sum is σ = 51939420. Its totient is φ = 6015744.

The previous prime is 18048379. The next prime is 18048403. The reversal of 18048384 is 48384081.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-4 number, since 4×18048384⁴ (a number of 30 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6682 + ... + 8985.

Almost surely, 2^18048384 is an apocalyptic number.

It is an amenable number.

18048384 is an abundant number, since it is smaller than the sum of its proper divisors (33891036).

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

18048384 is a wasteful number, since it uses less digits than its factorization.

18048384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15687 (or 15672 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 18048384 is about 4248.3389695268. The cubic root of 18048384 is about 262.3087477661.

The spelling of 18048384 in words is "eighteen million, forty-eight thousand, three hundred eighty-four".