18845196 has 12 divisors (see below), whose sum is σ = 43972152. Its totient is φ = 6281728.

The previous prime is 18845191. The next prime is 18845201. The reversal of 18845196 is 69154881.

It is an interprime number because it is at equal distance from previous prime (18845191) and next prime (18845201).

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (18845191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 785205 + ... + 785228.

It is an arithmetic number, because the mean of its divisors is an integer number (3664346).

Almost surely, 2^18845196 is an apocalyptic number.

It is an amenable number.

18845196 is an abundant number, since it is smaller than the sum of its proper divisors (25126956).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18845196 is a wasteful number, since it uses less digits than its factorization.

18845196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1570440 (or 1570438 counting only the distinct ones).

The product of its digits is 69120, while the sum is 42.

The square root of 18845196 is about 4341.1053891837. The cubic root of 18845196 is about 266.1134872934.

The spelling of 18845196 in words is "eighteen million, eight hundred forty-five thousand, one hundred ninety-six".