18028375 has 16 divisors (see below), whose sum is σ = 22632480. Its totient is φ = 14337600.

The previous prime is 18028369. The next prime is 18028379. The reversal of 18028375 is 57382081.

It is not a de Polignac number, because 18028375 - 2⁷ = 18028247 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18028375.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18028379) 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 15 ways as a sum of consecutive naturals, for example, 28816 + ... + 29434.

It is an arithmetic number, because the mean of its divisors is an integer number (1414530).

Almost surely, 2^18028375 is an apocalyptic number.

18028375 is a deficient number, since it is larger than the sum of its proper divisors (4604105).

18028375 is an equidigital number, since it uses as much as digits as its factorization.

18028375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867 (or 857 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 18028375 is about 4245.9833961051. The cubic root of 18028375 is about 262.2117773764.

The spelling of 18028375 in words is "eighteen million, twenty-eight thousand, three hundred seventy-five".