243408244 has 12 divisors (see below), whose sum is σ = 451021284. Its totient is φ = 114545024.

The previous prime is 243408233. The next prime is 243408271. The reversal of 243408244 is 442804342.

It can be written as a sum of positive squares in 2 ways, for example, as 197683600 + 45724644 = 14060^2 + 6762^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1789699 + ... + 1789834.

It is an arithmetic number, because the mean of its divisors is an integer number (37585107).

Almost surely, 2^243408244 is an apocalyptic number.

It is an amenable number.

243408244 is a deficient number, since it is larger than the sum of its proper divisors (207613040).

243408244 is a wasteful number, since it uses less digits than its factorization.

243408244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3579554 (or 3579552 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 31.

The square root of 243408244 is about 15601.5462054246. The cubic root of 243408244 is about 624.3744089062.

The spelling of 243408244 in words is "two hundred forty-three million, four hundred eight thousand, two hundred forty-four".