243814356 has 36 divisors (see below), whose sum is σ = 617017492. Its totient is φ = 81177984.

The previous prime is 243814321. The next prime is 243814367. The reversal of 243814356 is 653418342.

243814356 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 115218756 + 128595600 = 10734^2 + 11340^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 243814356.

It is a congruent number.

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, 32496 + ... + 39288.

Almost surely, 2^243814356 is an apocalyptic number.

It is an amenable number.

243814356 is an abundant number, since it is smaller than the sum of its proper divisors (373203136).

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

243814356 is a wasteful number, since it uses less digits than its factorization.

243814356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7800 (or 7795 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 243814356 is about 15614.5559014658. Note that the first 3 decimals coincide. The cubic root of 243814356 is about 624.7214596696.

The spelling of 243814356 in words is "two hundred forty-three million, eight hundred fourteen thousand, three hundred fifty-six".