243690036 has 48 divisors (see below), whose sum is σ = 609719040. Its totient is φ = 75479040.

The previous prime is 243689993. The next prime is 243690061. The reversal of 243690036 is 630096342.

It is a junction number, because it is equal to n+sod(n) for n = 243689979 and 243690006.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 8556 + ... + 23676.

It is an arithmetic number, because the mean of its divisors is an integer number (12702480).

Almost surely, 2^243690036 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 243690036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (304859520).

243690036 is an abundant number, since it is smaller than the sum of its proper divisors (366029004).

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

243690036 is a wasteful number, since it uses less digits than its factorization.

243690036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15224 (or 15222 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 33.

The square root of 243690036 is about 15610.5744929519. The cubic root of 243690036 is about 624.6152605962.

The spelling of 243690036 in words is "two hundred forty-three million, six hundred ninety thousand, thirty-six".