18869112 has 80 divisors (see below), whose sum is σ = 54348360. Its totient is φ = 6111936.

The previous prime is 18869093. The next prime is 18869153. The reversal of 18869112 is 21196881.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 23583 + ... + 24369.

Almost surely, 2^18869112 is an apocalyptic number.

18869112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18869112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27174180).

18869112 is an abundant number, since it is smaller than the sum of its proper divisors (35479248).

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

18869112 is a wasteful number, since it uses less digits than its factorization.

18869112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842 (or 829 counting only the distinct ones).

The product of its digits is 6912, while the sum is 36.

The square root of 18869112 is about 4343.8591137375. The cubic root of 18869112 is about 266.2260125186.

It can be divided in two parts, 18869 and 112, that added together give a palindrome (18981).

The spelling of 18869112 in words is "eighteen million, eight hundred sixty-nine thousand, one hundred twelve".