18726112 has 48 divisors (see below), whose sum is σ = 40415760. Its totient is φ = 8501248.

The previous prime is 18726109. The next prime is 18726131. The reversal of 18726112 is 21162781.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15183 + ... + 16369.

It is an arithmetic number, because the mean of its divisors is an integer number (841995).

Almost surely, 2^18726112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18726112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20207880).

18726112 is an abundant number, since it is smaller than the sum of its proper divisors (21689648).

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

18726112 is a wasteful number, since it uses less digits than its factorization.

18726112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1243 (or 1235 counting only the distinct ones).

The product of its digits is 1344, while the sum is 28.

The square root of 18726112 is about 4327.3677911636. The cubic root of 18726112 is about 265.5517730697.

Adding to 18726112 its reverse (21162781), we get a palindrome (39888893).

The spelling of 18726112 in words is "eighteen million, seven hundred twenty-six thousand, one hundred twelve".