18468252 has 72 divisors (see below), whose sum is σ = 51433200. Its totient is φ = 5541120.

The previous prime is 18468251. The next prime is 18468253. The reversal of 18468252 is 25286481.

It is an interprime number because it is at equal distance from previous prime (18468251) and next prime (18468253).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18468251) 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 23 ways as a sum of consecutive naturals, for example, 58848 + ... + 59160.

It is an arithmetic number, because the mean of its divisors is an integer number (714350).

Almost surely, 2^18468252 is an apocalyptic number.

18468252 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 18468252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25716600).

18468252 is an abundant number, since it is smaller than the sum of its proper divisors (32964948).

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

18468252 is a wasteful number, since it uses less digits than its factorization.

18468252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483 (or 478 counting only the distinct ones).

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

The square root of 18468252 is about 4297.4704187464. The cubic root of 18468252 is about 264.3272457045.

The spelling of 18468252 in words is "eighteen million, four hundred sixty-eight thousand, two hundred fifty-two".