18030027 has 4 divisors (see below), whose sum is σ = 24040040. Its totient is φ = 12020016.

The previous prime is 18029971. The next prime is 18030041. The reversal of 18030027 is 72003081.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 18030027 - 2⁷ = 18029899 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18029985 and 18030012.

It is not an unprimeable number, because it can be changed into a prime (18030227) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3005002 + ... + 3005007.

It is an arithmetic number, because the mean of its divisors is an integer number (6010010).

Almost surely, 2^18030027 is an apocalyptic number.

18030027 is a deficient number, since it is larger than the sum of its proper divisors (6010013).

18030027 is an equidigital number, since it uses as much as digits as its factorization.

18030027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6010012.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 18030027 is about 4246.1779284434. The cubic root of 18030027 is about 262.2197862444.

It can be divided in two parts, 1 and 8030027, that added together give a triangular number (8030028 = T₄₀₀₇).

The spelling of 18030027 in words is "eighteen million, thirty thousand, twenty-seven".