243875772 has 144 divisors (see below), whose sum is σ = 742140672. Its totient is φ = 68584320.

The previous prime is 243875719. The next prime is 243875783. The reversal of 243875772 is 277578342.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 496447 + ... + 496937.

Almost surely, 2^243875772 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 243875772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (371070336).

243875772 is an abundant number, since it is smaller than the sum of its proper divisors (498264900).

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

243875772 is a wasteful number, since it uses less digits than its factorization.

243875772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590 (or 576 counting only the distinct ones).

The product of its digits is 658560, while the sum is 45.

The square root of 243875772 is about 15616.5224041718. The cubic root of 243875772 is about 624.7739103301.

It can be divided in two parts, 2438 and 75772, that added together give a triangular number (78210 = T₃₉₅).

The spelling of 243875772 in words is "two hundred forty-three million, eight hundred seventy-five thousand, seven hundred seventy-two".