18028200 has 48 divisors (see below), whose sum is σ = 55889280. Its totient is φ = 4807360.

The previous prime is 18028189. The next prime is 18028229. The reversal of 18028200 is 282081.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14424 + ... + 15623.

It is an arithmetic number, because the mean of its divisors is an integer number (1164360).

Almost surely, 2^18028200 is an apocalyptic number.

18028200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18028200 is an abundant number, since it is smaller than the sum of its proper divisors (37861080).

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

18028200 is a wasteful number, since it uses less digits than its factorization.

18028200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30066 (or 30057 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

The square root of 18028200 is about 4245.9627883438. The cubic root of 18028200 is about 262.2109289507.

The spelling of 18028200 in words is "eighteen million, twenty-eight thousand, two hundred".