243026435662320 has 320 divisors, whose sum is σ = 783430187544576. Its totient is φ = 62254787051520.

The previous prime is 243026435662313. The next prime is 243026435662331. The reversal of 243026435662320 is 23266534620342.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 243026435662320.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 568939062 + ... + 569366058.

Almost surely, 2^{243026435662320} is an apocalyptic number.

243026435662320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243026435662320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (391715093772288).

243026435662320 is an abundant number, since it is smaller than the sum of its proper divisors (540403751882256).

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

243026435662320 is a wasteful number, since it uses less digits than its factorization.

243026435662320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427608 (or 427602 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 48.

The spelling of 243026435662320 in words is "two hundred forty-three trillion, twenty-six billion, four hundred thirty-five million, six hundred sixty-two thousand, three hundred twenty".