243352836 has 72 divisors (see below), whose sum is σ = 671550880. Its totient is φ = 76842432.

The previous prime is 243352829. The next prime is 243352843. The reversal of 243352836 is 638253342.

It is a happy number.

243352836 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (243352829) and next prime (243352843).

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

It is a self number, because there is not a number n which added to its sum of digits gives 243352836.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11880 + ... + 25056.

Almost surely, 2^243352836 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 243352836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (335775440).

243352836 is an abundant number, since it is smaller than the sum of its proper divisors (428198044).

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

243352836 is a wasteful number, since it uses less digits than its factorization.

243352836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13215 (or 13201 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

The square root of 243352836 is about 15599.7703829255. The cubic root of 243352836 is about 624.3270290228.

The spelling of 243352836 in words is "two hundred forty-three million, three hundred fifty-two thousand, eight hundred thirty-six".