243240572 has 12 divisors (see below), whose sum is σ = 425806080. Its totient is φ = 121581696.

The previous prime is 243240559. The next prime is 243240581. The reversal of 243240572 is 275042342.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8204 + ... + 23532.

It is an arithmetic number, because the mean of its divisors is an integer number (35483840).

Almost surely, 2^243240572 is an apocalyptic number.

It is an amenable number.

243240572 is a deficient number, since it is larger than the sum of its proper divisors (182565508).

243240572 is a wasteful number, since it uses less digits than its factorization.

243240572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19300 (or 19298 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 29.

The square root of 243240572 is about 15596.1717097498. The cubic root of 243240572 is about 624.2310090059.

The spelling of 243240572 in words is "two hundred forty-three million, two hundred forty thousand, five hundred seventy-two".