18028850 has 24 divisors (see below), whose sum is σ = 38324928. Its totient is φ = 6181200.

The previous prime is 18028847. The next prime is 18028877. The reversal of 18028850 is 5882081.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

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, 25406 + ... + 26105.

It is an arithmetic number, because the mean of its divisors is an integer number (1596872).

Almost surely, 2^18028850 is an apocalyptic number.

18028850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18028850 is an abundant number, since it is smaller than the sum of its proper divisors (20296078).

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

18028850 is a wasteful number, since it uses less digits than its factorization.

18028850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51530 (or 51525 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 32.

The square root of 18028850 is about 4246.0393309530. The cubic root of 18028850 is about 262.2140802184.

The spelling of 18028850 in words is "eighteen million, twenty-eight thousand, eight hundred fifty".