243043416 has 160 divisors (see below), whose sum is σ = 848897280. Its totient is φ = 63115200.

The previous prime is 243043399. The next prime is 243043429. The reversal of 243043416 is 614340342.

243043416 is a `hidden beast` number, since 243 + 0 + 4 + 3 + 416 = 666.

243043416 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 243043416.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 47461 + ... + 52331.

It is an arithmetic number, because the mean of its divisors is an integer number (5305608).

Almost surely, 2^243043416 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243043416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (424448640).

243043416 is an abundant number, since it is smaller than the sum of its proper divisors (605853864).

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

243043416 is a wasteful number, since it uses less digits than its factorization.

243043416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4907 (or 4894 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 243043416 is about 15589.8497747733. The cubic root of 243043416 is about 624.0623088668.

Adding to 243043416 its reverse (614340342), we get a palindrome (857383758).

The spelling of 243043416 in words is "two hundred forty-three million, forty-three thousand, four hundred sixteen".