243045730 has 8 divisors (see below), whose sum is σ = 437482332. Its totient is φ = 97218288.

The previous prime is 243045713. The next prime is 243045743. The reversal of 243045730 is 37540342.

It can be written as a sum of positive squares in 2 ways, for example, as 225930961 + 17114769 = 15031^2 + 4137^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12152277 + ... + 12152296.

Almost surely, 2^243045730 is an apocalyptic number.

243045730 is a deficient number, since it is larger than the sum of its proper divisors (194436602).

243045730 is a wasteful number, since it uses less digits than its factorization.

243045730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24304580.

The product of its (nonzero) digits is 10080, while the sum is 28.

The square root of 243045730 is about 15589.9239895517. The cubic root of 243045730 is about 624.0642894122.

The spelling of 243045730 in words is "two hundred forty-three million, forty-five thousand, seven hundred thirty".