243786948 has 48 divisors (see below), whose sum is σ = 600841920. Its totient is φ = 76719744.

The previous prime is 243786947. The next prime is 243786971. The reversal of 243786948 is 849687342.

243786948 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 243786948.

It is not an unprimeable number, because it can be changed into a prime (243786947) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70590 + ... + 73962.

It is an arithmetic number, because the mean of its divisors is an integer number (12517540).

Almost surely, 2^243786948 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 243786948, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (300420960).

243786948 is an abundant number, since it is smaller than the sum of its proper divisors (357054972).

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

243786948 is a wasteful number, since it uses less digits than its factorization.

243786948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3716 (or 3714 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 51.

The square root of 243786948 is about 15613.6782341638. The cubic root of 243786948 is about 624.6980497719.

The spelling of 243786948 in words is "two hundred forty-three million, seven hundred eighty-six thousand, nine hundred forty-eight".