243343556 has 12 divisors (see below), whose sum is σ = 425985168. Its totient is φ = 121633512.

The previous prime is 243343543. The next prime is 243343567. The reversal of 243343556 is 655343342.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8555 + ... + 23661.

It is an arithmetic number, because the mean of its divisors is an integer number (35498764).

Almost surely, 2^243343556 is an apocalyptic number.

It is an amenable number.

243343556 is a deficient number, since it is larger than the sum of its proper divisors (182641612).

243343556 is a wasteful number, since it uses less digits than its factorization.

243343556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19138 (or 19136 counting only the distinct ones).

The product of its digits is 129600, while the sum is 35.

The square root of 243343556 is about 15599.4729398143. The cubic root of 243343556 is about 624.3190929076.

Adding to 243343556 its reverse (655343342), we get a palindrome (898686898).

The spelling of 243343556 in words is "two hundred forty-three million, three hundred forty-three thousand, five hundred fifty-six".