18750285 has 40 divisors (see below), whose sum is σ = 34162656. Its totient is φ = 9836640.

The previous prime is 18750239. The next prime is 18750299. The reversal of 18750285 is 58205781.

It is not a de Polignac number, because 18750285 - 2⁸ = 18750029 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 26790 + ... + 27480.

Almost surely, 2^18750285 is an apocalyptic number.

18750285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18750285 is a deficient number, since it is larger than the sum of its proper divisors (15412371).

18750285 is an equidigital number, since it uses as much as digits as its factorization.

18750285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775 (or 766 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 36.

The square root of 18750285 is about 4330.1599277625. The cubic root of 18750285 is about 265.6659883230.

The spelling of 18750285 in words is "eighteen million, seven hundred fifty thousand, two hundred eighty-five".