18056484 has 36 divisors (see below), whose sum is σ = 46200336. Its totient is φ = 5945328.

The previous prime is 18056483. The next prime is 18056497. The reversal of 18056484 is 48465081.

18056484 is a `hidden beast` number, since 1 + 8 + 0 + 5 + 648 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×18056484² = 652073228884512, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (18056483) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34 + ... + 6009.

Almost surely, 2^18056484 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 18056484, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23100168).

18056484 is an abundant number, since it is smaller than the sum of its proper divisors (28143852).

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

18056484 is a wasteful number, since it uses less digits than its factorization.

18056484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6136 (or 6131 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 18056484 is about 4249.2921763513. The cubic root of 18056484 is about 262.3479827301.

The spelling of 18056484 in words is "eighteen million, fifty-six thousand, four hundred eighty-four".