18063018 has 24 divisors (see below), whose sum is σ = 40400256. Its totient is φ = 5826600.

The previous prime is 18063013. The next prime is 18063029. The reversal of 18063018 is 81036081.

18063018 is a `hidden beast` number, since 18 + 0 + 630 + 18 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 18062982 and 18063000.

It is not an unprimeable number, because it can be changed into a prime (18063011) 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 11 ways as a sum of consecutive naturals, for example, 15628 + ... + 16743.

It is an arithmetic number, because the mean of its divisors is an integer number (1683344).

Almost surely, 2^18063018 is an apocalyptic number.

18063018 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

18063018 is an abundant number, since it is smaller than the sum of its proper divisors (22337238).

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

18063018 is a wasteful number, since it uses less digits than its factorization.

18063018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32410 (or 32407 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 18063018 is about 4250.0609407396. The cubic root of 18063018 is about 262.3796237183.

Adding to 18063018 its reverse (81036081), we get a palindrome (99099099).

The spelling of 18063018 in words is "eighteen million, sixty-three thousand, eighteen".