243034245140 has 24 divisors (see below), whose sum is σ = 537233595360. Its totient is φ = 92097187488.

The previous prime is 243034245089. The next prime is 243034245151. The reversal of 243034245140 is 41542430342.

It is a super-2 number, since 2×243034245140² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 243034245097 and 243034245106.

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, 319781522 + ... + 319782281.

It is an arithmetic number, because the mean of its divisors is an integer number (22384733140).

Almost surely, 2^243034245140 is an apocalyptic number.

243034245140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243034245140 is an abundant number, since it is smaller than the sum of its proper divisors (294199350220).

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

243034245140 is a wasteful number, since it uses less digits than its factorization.

243034245140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639563831 (or 639563829 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 32.

Adding to 243034245140 its reverse (41542430342), we get a palindrome (284576675482).

The spelling of 243034245140 in words is "two hundred forty-three billion, thirty-four million, two hundred forty-five thousand, one hundred forty".