243444111322340 has 48 divisors (see below), whose sum is σ = 512479424318400. Its totient is φ = 97140184808832.

The previous prime is 243444111322319. The next prime is 243444111322387. The reversal of 243444111322340 is 43223111444342.

It is a junction number, because it is equal to n+sod(n) for n = 243444111322294 and 243444111322303.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162404147 + ... + 163896293.

It is an arithmetic number, because the mean of its divisors is an integer number (10676654673300).

Almost surely, 2^{243444111322340} is an apocalyptic number.

243444111322340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243444111322340 is an abundant number, since it is smaller than the sum of its proper divisors (269035312996060).

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

243444111322340 is a wasteful number, since it uses less digits than its factorization.

243444111322340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1512044 (or 1512042 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 38.

Adding to 243444111322340 its reverse (43223111444342), we get a palindrome (286667222766682).

The spelling of 243444111322340 in words is "two hundred forty-three trillion, four hundred forty-four billion, one hundred eleven million, three hundred twenty-two thousand, three hundred forty".