18582252 has 48 divisors (see below), whose sum is σ = 48733440. Its totient is φ = 5467968.

The previous prime is 18582217. The next prime is 18582253. The reversal of 18582252 is 25228581.

It is not an unprimeable number, because it can be changed into a prime (18582253) 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, 999 + ... + 6177.

It is an arithmetic number, because the mean of its divisors is an integer number (1015280).

Almost surely, 2^18582252 is an apocalyptic number.

18582252 is a gapful number since it is divisible by the number (12) 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 18582252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24366720).

18582252 is an abundant number, since it is smaller than the sum of its proper divisors (30151188).

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

18582252 is a wasteful number, since it uses less digits than its factorization.

18582252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5222 (or 5220 counting only the distinct ones).

The product of its digits is 12800, while the sum is 33.

The square root of 18582252 is about 4310.7136300153. The cubic root of 18582252 is about 264.8700062560.

The spelling of 18582252 in words is "eighteen million, five hundred eighty-two thousand, two hundred fifty-two".