243332234240 has 88 divisors (see below), whose sum is σ = 583908584112. Its totient is φ = 97300152320.

The previous prime is 243332234239. The next prime is 243332234251. The reversal of 243332234240 is 42432233342.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 243332234197 and 243332234206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20202620 + ... + 20214660.

Almost surely, 2^243332234240 is an apocalyptic number.

243332234240 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 243332234240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (291954292056).

243332234240 is an abundant number, since it is smaller than the sum of its proper divisors (340576349872).

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

243332234240 is a wasteful number, since it uses less digits than its factorization.

243332234240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16013 (or 15995 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 32.

Adding to 243332234240 its reverse (42432233342), we get a palindrome (285764467582).

The spelling of 243332234240 in words is "two hundred forty-three billion, three hundred thirty-two million, two hundred thirty-four thousand, two hundred forty".