18366852 has 48 divisors (see below), whose sum is σ = 50182272. Its totient is φ = 5118720.

The previous prime is 18366847. The next prime is 18366869. The reversal of 18366852 is 25866381.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 18366852.

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 15 ways as a sum of consecutive naturals, for example, 778 + ... + 6110.

It is an arithmetic number, because the mean of its divisors is an integer number (1045464).

Almost surely, 2^18366852 is an apocalyptic number.

18366852 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 18366852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25091136).

18366852 is an abundant number, since it is smaller than the sum of its proper divisors (31815420).

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

18366852 is a wasteful number, since it uses less digits than its factorization.

18366852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5388 (or 5386 counting only the distinct ones).

The product of its digits is 69120, while the sum is 39.

The square root of 18366852 is about 4285.6565424681. The cubic root of 18366852 is about 263.8425944143.

The spelling of 18366852 in words is "eighteen million, three hundred sixty-six thousand, eight hundred fifty-two".