18882885 has 48 divisors (see below), whose sum is σ = 36706176. Its totient is φ = 8249472.

The previous prime is 18882883. The next prime is 18882907. The reversal of 18882885 is 58828881.

It is not a de Polignac number, because 18882885 - 2¹ = 18882883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18882883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16347 + ... + 17463.

It is an arithmetic number, because the mean of its divisors is an integer number (764712).

Almost surely, 2^18882885 is an apocalyptic number.

18882885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18882885 is a deficient number, since it is larger than the sum of its proper divisors (17823291).

18882885 is a wasteful number, since it uses less digits than its factorization.

18882885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1162 (or 1155 counting only the distinct ones).

The product of its digits is 327680, while the sum is 48.

The square root of 18882885 is about 4345.4441660203. Note that the first 3 decimals coincide. The cubic root of 18882885 is about 266.2907716001.

The spelling of 18882885 in words is "eighteen million, eight hundred eighty-two thousand, eight hundred eighty-five".