18882285 has 8 divisors (see below), whose sum is σ = 30211680. Its totient is φ = 10070544.

The previous prime is 18882221. The next prime is 18882293. The reversal of 18882285 is 58228881.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18882285 - 2⁶ = 18882221 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 629395 + ... + 629424.

It is an arithmetic number, because the mean of its divisors is an integer number (3776460).

Almost surely, 2^18882285 is an apocalyptic number.

18882285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18882285 is a deficient number, since it is larger than the sum of its proper divisors (11329395).

18882285 is a wasteful number, since it uses less digits than its factorization.

18882285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1258827.

The product of its digits is 81920, while the sum is 42.

The square root of 18882285 is about 4345.3751276501. The cubic root of 18882285 is about 266.2879511244.

The spelling of 18882285 in words is "eighteen million, eight hundred eighty-two thousand, two hundred eighty-five".