243256356 has 36 divisors (see below), whose sum is σ = 702741312. Its totient is φ = 69501744.

The previous prime is 243256337. The next prime is 243256397. The reversal of 243256356 is 653652342.

243256356 is a `hidden beast` number, since 2 + 43 + 2 + 563 + 56 = 666.

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 243256356.

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, 482400 + ... + 482903.

It is an arithmetic number, because the mean of its divisors is an integer number (19520592).

Almost surely, 2^243256356 is an apocalyptic number.

It is an amenable number.

243256356 is an abundant number, since it is smaller than the sum of its proper divisors (459484956).

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

243256356 is a wasteful number, since it uses less digits than its factorization.

243256356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 965320 (or 965315 counting only the distinct ones).

The product of its digits is 129600, while the sum is 36.

The square root of 243256356 is about 15596.6777231563. The cubic root of 243256356 is about 624.2445109327.

The spelling of 243256356 in words is "two hundred forty-three million, two hundred fifty-six thousand, three hundred fifty-six".