18264001 has 16 divisors (see below), whose sum is σ = 23065344. Its totient is φ = 14091264.

The previous prime is 18263989. The next prime is 18264017. The reversal of 18264001 is 10046281.

It is a cyclic number.

It is not a de Polignac number, because 18264001 - 2¹¹ = 18261953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18264031) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 600 + ... + 6073.

It is an arithmetic number, because the mean of its divisors is an integer number (1441584).

Almost surely, 2^18264001 is an apocalyptic number.

It is an amenable number.

18264001 is a deficient number, since it is larger than the sum of its proper divisors (4801343).

18264001 is a wasteful number, since it uses less digits than its factorization.

18264001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6720.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 18264001 is about 4273.6402515888. The cubic root of 18264001 is about 263.3491822254.

The spelling of 18264001 in words is "eighteen million, two hundred sixty-four thousand, one".