243243224450 has 24 divisors (see below), whose sum is σ = 452449525008. Its totient is φ = 97293606480.

The previous prime is 243243224447. The next prime is 243243224459. The reversal of 243243224450 is 54422342342.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 243243224450.

It is not an unprimeable number, because it can be changed into a prime (243243224459) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1522049 + ... + 1674251.

It is an arithmetic number, because the mean of its divisors is an integer number (18852063542).

Almost surely, 2^243243224450 is an apocalyptic number.

243243224450 is a deficient number, since it is larger than the sum of its proper divisors (209206300558).

243243224450 is a wasteful number, since it uses less digits than its factorization.

243243224450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184178 (or 184173 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 35.

Adding to 243243224450 its reverse (54422342342), we get a palindrome (297665566792).

The spelling of 243243224450 in words is "two hundred forty-three billion, two hundred forty-three million, two hundred twenty-four thousand, four hundred fifty".