243656016 has 40 divisors (see below), whose sum is σ = 633632064. Its totient is φ = 80678400.

The previous prime is 243656011. The next prime is 243656047. The reversal of 243656016 is 610656342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243656011) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 9561 + ... + 24056.

Almost surely, 2^243656016 is an apocalyptic number.

It is an amenable number.

243656016 is an abundant number, since it is smaller than the sum of its proper divisors (389976048).

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

243656016 is a wasteful number, since it uses less digits than its factorization.

243656016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33779 (or 33773 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 243656016 is about 15609.4848089231. The cubic root of 243656016 is about 624.5861930693.

It can be divided in two parts, 24365 and 6016, that added together give a triangular number (30381 = T₂₄₆).

The spelling of 243656016 in words is "two hundred forty-three million, six hundred fifty-six thousand, sixteen".