18273112 has 32 divisors (see below), whose sum is σ = 40254480. Its totient is φ = 7666560.

The previous prime is 18273071. The next prime is 18273119. The reversal of 18273112 is 21137281.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18273119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6843 + ... + 9130.

Almost surely, 2^18273112 is an apocalyptic number.

It is an amenable number.

18273112 is an abundant number, since it is smaller than the sum of its proper divisors (21981368).

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

18273112 is a wasteful number, since it uses less digits than its factorization.

18273112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16003 (or 15999 counting only the distinct ones).

The product of its digits is 672, while the sum is 25.

The square root of 18273112 is about 4274.7060717668. The cubic root of 18273112 is about 263.3929655406.

The spelling of 18273112 in words is "eighteen million, two hundred seventy-three thousand, one hundred twelve".