243350405450 has 24 divisors (see below), whose sum is σ = 453229752972. Its totient is φ = 97211560320.

The previous prime is 243350405351. The next prime is 243350405471. The reversal of 243350405450 is 54504053342.

It can be written as a sum of positive squares in 6 ways, for example, as 147787193761 + 95563211689 = 384431^2 + 309133^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 243350405450.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3176819 + ... + 3252518.

Almost surely, 2^243350405450 is an apocalyptic number.

243350405450 is a deficient number, since it is larger than the sum of its proper divisors (209879347522).

243350405450 is a wasteful number, since it uses less digits than its factorization.

243350405450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6430106 (or 6430101 counting only the distinct ones).

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

Adding to 243350405450 its reverse (54504053342), we get a palindrome (297854458792).

The spelling of 243350405450 in words is "two hundred forty-three billion, three hundred fifty million, four hundred five thousand, four hundred fifty".