18264064 has 104 divisors (see below), whose sum is σ = 45869600. Its totient is φ = 7225344.

The previous prime is 18264041. The next prime is 18264101. The reversal of 18264064 is 46046281.

It is a tau number, because it is divible by the number of its divisors (104).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1404922 + ... + 1404934.

Almost surely, 2^18264064 is an apocalyptic number.

18264064 is a gapful number since it is divisible by the number (14) 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 18264064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22934800).

18264064 is an abundant number, since it is smaller than the sum of its proper divisors (27605536).

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

18264064 is an frugal number, since it uses more digits than its factorization.

18264064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58 (or 22 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 18264064 is about 4273.6476223479. The cubic root of 18264064 is about 263.3494850247.

It can be divided in two parts, 182 and 64064, that added together give a palindrome (64246).

The spelling of 18264064 in words is "eighteen million, two hundred sixty-four thousand, sixty-four".