18982850 has 48 divisors (see below), whose sum is σ = 37545216. Its totient is φ = 7128000.

The previous prime is 18982841. The next prime is 18982853. The reversal of 18982850 is 5828981.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 18982798 and 18982807.

It is not an unprimeable number, because it can be changed into a prime (18982853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57185 + ... + 57515.

It is an arithmetic number, because the mean of its divisors is an integer number (782192).

Almost surely, 2^18982850 is an apocalyptic number.

18982850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18982850 is a deficient number, since it is larger than the sum of its proper divisors (18562366).

18982850 is a wasteful number, since it uses less digits than its factorization.

18982850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411 (or 406 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 41.

The square root of 18982850 is about 4356.9312594991. The cubic root of 18982850 is about 266.7598545840.

The spelling of 18982850 in words is "eighteen million, nine hundred eighty-two thousand, eight hundred fifty".