18842116 has 12 divisors (see below), whose sum is σ = 33140800. Its totient is φ = 9373320.

The previous prime is 18842111. The next prime is 18842143. The reversal of 18842116 is 61124881.

It is not an unprimeable number, because it can be changed into a prime (18842111) 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, 11040 + ... + 12631.

Almost surely, 2^18842116 is an apocalyptic number.

It is an amenable number.

18842116 is a deficient number, since it is larger than the sum of its proper divisors (14298684).

18842116 is a wasteful number, since it uses less digits than its factorization.

18842116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23874 (or 23872 counting only the distinct ones).

The product of its digits is 3072, while the sum is 31.

The square root of 18842116 is about 4340.7506263318. The cubic root of 18842116 is about 266.0989889177.

Adding to 18842116 its reverse (61124881), we get a palindrome (79966997).

The spelling of 18842116 in words is "eighteen million, eight hundred forty-two thousand, one hundred sixteen".