18084424 has 16 divisors (see below), whose sum is σ = 34697520. Its totient is φ = 8831760.

The previous prime is 18084421. The next prime is 18084461. The reversal of 18084424 is 42448081.

It is a super-3 number, since 3×18084424³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (18084421) by changing a digit.

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, 25942 + ... + 26629.

It is an arithmetic number, because the mean of its divisors is an integer number (2168595).

Almost surely, 2^18084424 is an apocalyptic number.

It is an amenable number.

18084424 is a deficient number, since it is larger than the sum of its proper divisors (16613096).

18084424 is a wasteful number, since it uses less digits than its factorization.

18084424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52620 (or 52616 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 31.

The square root of 18084424 is about 4252.5785119149. The cubic root of 18084424 is about 262.4832291629.

The spelling of 18084424 in words is "eighteen million, eighty-four thousand, four hundred twenty-four".