18243032 has 16 divisors (see below), whose sum is σ = 35040600. Its totient is φ = 8898880.

The previous prime is 18243019. The next prime is 18243037. The reversal of 18243032 is 23034281.

It is a super-3 number, since 3×18243032³ (a number of 23 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18242989 and 18243007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18243037) 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 3 ways as a sum of consecutive naturals, for example, 27482 + ... + 28137.

Almost surely, 2^18243032 is an apocalyptic number.

It is an amenable number.

18243032 is a deficient number, since it is larger than the sum of its proper divisors (16797568).

18243032 is a wasteful number, since it uses less digits than its factorization.

18243032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55666 (or 55662 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 18243032 is about 4271.1862520850. The cubic root of 18243032 is about 263.2483594157.

The spelling of 18243032 in words is "eighteen million, two hundred forty-three thousand, thirty-two".