18270912 has 112 divisors (see below), whose sum is σ = 54278784. Its totient is φ = 5376000.

The previous prime is 18270893. The next prime is 18270961. The reversal of 18270912 is 21907281.

It is a self number, because there is not a number n which added to its sum of digits gives 18270912.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86487 + ... + 86697.

It is an arithmetic number, because the mean of its divisors is an integer number (484632).

Almost surely, 2^18270912 is an apocalyptic number.

18270912 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 18270912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27139392).

18270912 is an abundant number, since it is smaller than the sum of its proper divisors (36007872).

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

18270912 is a wasteful number, since it uses less digits than its factorization.

18270912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278 (or 268 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 18270912 is about 4274.4487363870. The cubic root of 18270912 is about 263.3823946759.

The spelling of 18270912 in words is "eighteen million, two hundred seventy thousand, nine hundred twelve".