243385957430 has 32 divisors (see below), whose sum is σ = 546196020480. Its totient is φ = 75860557920.

The previous prime is 243385957417. The next prime is 243385957447. The reversal of 243385957430 is 34759583342.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158042060 + ... + 158043599.

It is an arithmetic number, because the mean of its divisors is an integer number (17068625640).

Almost surely, 2^243385957430 is an apocalyptic number.

243385957430 is an abundant number, since it is smaller than the sum of its proper divisors (302810063050).

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

243385957430 is a wasteful number, since it uses less digits than its factorization.

243385957430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316085684.

The product of its (nonzero) digits is 10886400, while the sum is 53.

The spelling of 243385957430 in words is "two hundred forty-three billion, three hundred eighty-five million, nine hundred fifty-seven thousand, four hundred thirty".