243881676 has 36 divisors (see below), whose sum is σ = 622249992. Its totient is φ = 80532864.

The previous prime is 243881669. The next prime is 243881683. The reversal of 243881676 is 676188342.

243881676 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (243881669) and next prime (243881683).

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

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, 27805 + ... + 35508.

It is an arithmetic number, because the mean of its divisors is an integer number (17284722).

Almost surely, 2^243881676 is an apocalyptic number.

It is an amenable number.

243881676 is an abundant number, since it is smaller than the sum of its proper divisors (378368316).

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

243881676 is a wasteful number, since it uses less digits than its factorization.

243881676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63430 (or 63425 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 243881676 is about 15616.7114335893. The cubic root of 243881676 is about 624.7789520163.

The spelling of 243881676 in words is "two hundred forty-three million, eight hundred eighty-one thousand, six hundred seventy-six".