18085232 has 40 divisors (see below), whose sum is σ = 38485632. Its totient is φ = 8164800.

The previous prime is 18085213. The next prime is 18085237. The reversal of 18085232 is 23258081.

It is a junction number, because it is equal to n+sod(n) for n = 18085195 and 18085204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18085237) 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 7 ways as a sum of consecutive naturals, for example, 36893 + ... + 37379.

Almost surely, 2^18085232 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 18085232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19242816).

18085232 is an abundant number, since it is smaller than the sum of its proper divisors (20400400).

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

18085232 is a wasteful number, since it uses less digits than its factorization.

18085232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717 (or 711 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 18085232 is about 4252.6735120392. The cubic root of 18085232 is about 262.4871382965.

The spelling of 18085232 in words is "eighteen million, eighty-five thousand, two hundred thirty-two".