18030024 has 48 divisors (see below), whose sum is σ = 49533120. Its totient is φ = 5923680.

The previous prime is 18029971. The next prime is 18030041. The reversal of 18030024 is 42003081.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 18029979 and 18030006.

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 11 ways as a sum of consecutive naturals, for example, 3349 + ... + 6875.

It is an arithmetic number, because the mean of its divisors is an integer number (1031940).

Almost surely, 2^18030024 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18030024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24766560).

18030024 is an abundant number, since it is smaller than the sum of its proper divisors (31503096).

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

18030024 is a wasteful number, since it uses less digits than its factorization.

18030024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3610 (or 3603 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 18030024 is about 4246.1775751845. The cubic root of 18030024 is about 262.2197717008.

The spelling of 18030024 in words is "eighteen million, thirty thousand, twenty-four".