18264928 has 48 divisors (see below), whose sum is σ = 41307840. Its totient is φ = 7862400.

The previous prime is 18264923. The next prime is 18264929. The reversal of 18264928 is 82946281.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18264923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5323 + ... + 8053.

It is an arithmetic number, because the mean of its divisors is an integer number (860580).

Almost surely, 2^18264928 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 18264928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20653920).

18264928 is an abundant number, since it is smaller than the sum of its proper divisors (23042912).

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

18264928 is a wasteful number, since it uses less digits than its factorization.

18264928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2771 (or 2763 counting only the distinct ones).

The product of its digits is 55296, while the sum is 40.

The square root of 18264928 is about 4273.7487057617. The cubic root of 18264928 is about 263.3536376304.

The spelling of 18264928 in words is "eighteen million, two hundred sixty-four thousand, nine hundred twenty-eight".