18027004 has 24 divisors (see below), whose sum is σ = 33542208. Its totient is φ = 8448000.

The previous prime is 18026959. The next prime is 18027011. The reversal of 18027004 is 40072081.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23629 + ... + 24379.

It is an arithmetic number, because the mean of its divisors is an integer number (1397592).

Almost surely, 2^18027004 is an apocalyptic number.

It is an amenable number.

18027004 is a deficient number, since it is larger than the sum of its proper divisors (15515204).

18027004 is a wasteful number, since it uses less digits than its factorization.

18027004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125 (or 1123 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 18027004 is about 4245.8219463374. The cubic root of 18027004 is about 262.2051304201.

Adding to 18027004 its reverse (40072081), we get a palindrome (58099085).

The spelling of 18027004 in words is "eighteen million, twenty-seven thousand, four".