18841996 has 48 divisors (see below), whose sum is σ = 36691200. Its totient is φ = 8430912.

The previous prime is 18841987. The next prime is 18841997. The reversal of 18841996 is 69914881.

It is not an unprimeable number, because it can be changed into a prime (18841997) 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 15 ways as a sum of consecutive naturals, for example, 182881 + ... + 182983.

It is an arithmetic number, because the mean of its divisors is an integer number (764400).

Almost surely, 2^18841996 is an apocalyptic number.

It is an amenable number.

18841996 is a deficient number, since it is larger than the sum of its proper divisors (17849204).

18841996 is a wasteful number, since it uses less digits than its factorization.

18841996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238 (or 236 counting only the distinct ones).

The product of its digits is 124416, while the sum is 46.

The square root of 18841996 is about 4340.7368038157. The cubic root of 18841996 is about 266.0984240139.

The spelling of 18841996 in words is "eighteen million, eight hundred forty-one thousand, nine hundred ninety-six".