243432542052 has 192 divisors, whose sum is σ = 746754624000. Its totient is φ = 67099705344.

The previous prime is 243432542047. The next prime is 243432542107. The reversal of 243432542052 is 250245234342.

243432542052 is a `hidden beast` number, since 2 + 4 + 34 + 32 + 542 + 0 + 52 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 243432541998 and 243432542016.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 32641108 + ... + 32648564.

It is an arithmetic number, because the mean of its divisors is an integer number (3889347000).

Almost surely, 2^243432542052 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243432542052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (373377312000).

243432542052 is an abundant number, since it is smaller than the sum of its proper divisors (503322081948).

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

243432542052 is a wasteful number, since it uses less digits than its factorization.

243432542052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8995 (or 8987 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 36.

Adding to 243432542052 its reverse (250245234342), we get a palindrome (493677776394).

The spelling of 243432542052 in words is "two hundred forty-three billion, four hundred thirty-two million, five hundred forty-two thousand, fifty-two".