18012852 has 72 divisors (see below), whose sum is σ = 53508000. Its totient is φ = 5037120.

The previous prime is 18012847. The next prime is 18012853. The reversal of 18012852 is 25821081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18012853) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3399 + ... + 6897.

Almost surely, 2^18012852 is an apocalyptic number.

18012852 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 18012852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26754000).

18012852 is an abundant number, since it is smaller than the sum of its proper divisors (35495148).

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

18012852 is a wasteful number, since it uses less digits than its factorization.

18012852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3533 (or 3528 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The square root of 18012852 is about 4244.1550395809. The cubic root of 18012852 is about 262.1364982270.

The spelling of 18012852 in words is "eighteen million, twelve thousand, eight hundred fifty-two".