18000270 has 24 divisors (see below), whose sum is σ = 46800936. Its totient is φ = 4800048.

The previous prime is 18000259. The next prime is 18000319. The reversal of 18000270 is 7200081.

It is a Smith number, since the sum of its digits (18) coincides with the sum of the digits of its prime factors.

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

18000270 is a modest number, since divided by 270 gives 180 as remainder.

It is a congruent number.

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, 99912 + ... + 100091.

It is an arithmetic number, because the mean of its divisors is an integer number (1950039).

Almost surely, 2^18000270 is an apocalyptic number.

18000270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18000270 is an abundant number, since it is smaller than the sum of its proper divisors (28800666).

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

18000270 is a wasteful number, since it uses less digits than its factorization.

18000270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200016 (or 200013 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 18000270 is about 4242.6725068051. The cubic root of 18000270 is about 262.0754497850.

The spelling of 18000270 in words is "eighteen million, two hundred seventy", and thus it is an aban number.