18132648 has 64 divisors (see below), whose sum is σ = 47900160. Its totient is φ = 5708736.

The previous prime is 18132643. The next prime is 18132661. The reversal of 18132648 is 84623181.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (18132643) 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 15 ways as a sum of consecutive naturals, for example, 58911 + ... + 59217.

It is an arithmetic number, because the mean of its divisors is an integer number (748440).

Almost surely, 2^18132648 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 18132648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23950080).

18132648 is an abundant number, since it is smaller than the sum of its proper divisors (29767512).

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

18132648 is a wasteful number, since it uses less digits than its factorization.

18132648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446 (or 442 counting only the distinct ones).

The product of its digits is 9216, while the sum is 33.

The square root of 18132648 is about 4258.2447087973. The cubic root of 18132648 is about 262.7163350408.

The spelling of 18132648 in words is "eighteen million, one hundred thirty-two thousand, six hundred forty-eight".