243272250 has 96 divisors (see below), whose sum is σ = 708493968. Its totient is φ = 59875200.

The previous prime is 243272207. The next prime is 243272269. The reversal of 243272250 is 52272342.

243272250 is a `hidden beast` number, since 2 + 432 + 7 + 225 + 0 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 22838841 + 220433409 = 4779^2 + 14847^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25092 + ... + 33408.

Almost surely, 2^243272250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243272250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (354246984).

243272250 is an abundant number, since it is smaller than the sum of its proper divisors (465221718).

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

243272250 is a wasteful number, since it uses less digits than its factorization.

243272250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8353 (or 8340 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 243272250 is about 15597.1872464236. The cubic root of 243272250 is about 624.2581063653.

The spelling of 243272250 in words is "two hundred forty-three million, two hundred seventy-two thousand, two hundred fifty".