243310436 has 12 divisors (see below), whose sum is σ = 428506428. Its totient is φ = 120880032.

The previous prime is 243310427. The next prime is 243310451. The reversal of 243310436 is 634013342.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 87310336 + 156000100 = 9344^2 + 12490^2 .

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 3 ways as a sum of consecutive naturals, for example, 193091 + ... + 194346.

It is an arithmetic number, because the mean of its divisors is an integer number (35708869).

Almost surely, 2^243310436 is an apocalyptic number.

It is an amenable number.

243310436 is a deficient number, since it is larger than the sum of its proper divisors (185195992).

243310436 is a wasteful number, since it uses less digits than its factorization.

243310436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387598 (or 387596 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

The square root of 243310436 is about 15598.4113293630. The cubic root of 243310436 is about 624.2907675407.

Adding to 243310436 its reverse (634013342), we get a palindrome (877323778).

The spelling of 243310436 in words is "two hundred forty-three million, three hundred ten thousand, four hundred thirty-six".