243738502844 has 12 divisors (see below), whose sum is σ = 431681445384. Its totient is φ = 120400947024.

The previous prime is 243738502837. The next prime is 243738502907. The reversal of 243738502844 is 448205837342.

It is a junction number, because it is equal to n+sod(n) for n = 243738502792 and 243738502801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 367075727 + ... + 367076390.

It is an arithmetic number, because the mean of its divisors is an integer number (35973453782).

Almost surely, 2^243738502844 is an apocalyptic number.

It is an amenable number.

243738502844 is a deficient number, since it is larger than the sum of its proper divisors (187942942540).

243738502844 is a wasteful number, since it uses less digits than its factorization.

243738502844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734152204 (or 734152202 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 50.

The spelling of 243738502844 in words is "two hundred forty-three billion, seven hundred thirty-eight million, five hundred two thousand, eight hundred forty-four".