243036 has 36 divisors (see below), whose sum is σ = 632632. Its totient is φ = 78624.

The previous prime is 243031. The next prime is 243073. The reversal of 243036 is 630342.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a d-powerful number, because it can be written as 2⁷ + 4⁸ + 0 + 3² + 3¹¹ + 6³ .

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 243036.

It is not an unprimeable number, because it can be changed into a prime (243031) by changing a digit.

243036 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1470 + ... + 1626.

2²⁴³⁰³⁶ 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 243036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (316316).

243036 is an abundant number, since it is smaller than the sum of its proper divisors (389596).

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

243036 is a wasteful number, since it uses less digits than its factorization.

243036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210 (or 205 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 243036 is about 492.9868152395. The cubic root of 243036 is about 62.4055961451.

Adding to 243036 its reverse (630342), we get a palindrome (873378).

The spelling of 243036 in words is "two hundred forty-three thousand, thirty-six".