243505222532 has 48 divisors (see below), whose sum is σ = 501116179200. Its totient is φ = 102071439360.

The previous prime is 243505222483. The next prime is 243505222537. The reversal of 243505222532 is 235222505342.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 243505222492 and 243505222501.

It is not an unprimeable number, because it can be changed into a prime (243505222537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 389444 + ... + 799172.

It is an arithmetic number, because the mean of its divisors is an integer number (10439920400).

Almost surely, 2^243505222532 is an apocalyptic number.

243505222532 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

243505222532 is an abundant number, since it is smaller than the sum of its proper divisors (257610956668).

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

243505222532 is a wasteful number, since it uses less digits than its factorization.

243505222532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410796 (or 410794 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 35.

Adding to 243505222532 its reverse (235222505342), we get a palindrome (478727727874).

The spelling of 243505222532 in words is "two hundred forty-three billion, five hundred five million, two hundred twenty-two thousand, five hundred thirty-two".