242815730 has 8 divisors (see below), whose sum is σ = 437068332. Its totient is φ = 97126288.

The previous prime is 242815723. The next prime is 242815733. The reversal of 242815730 is 37518242.

It can be written as a sum of positive squares in 2 ways, for example, as 219069601 + 23746129 = 14801^2 + 4873^2 .

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

It is not an unprimeable number, because it can be changed into a prime (242815733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12140777 + ... + 12140796.

Almost surely, 2^242815730 is an apocalyptic number.

242815730 is a deficient number, since it is larger than the sum of its proper divisors (194252602).

242815730 is a wasteful number, since it uses less digits than its factorization.

242815730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24281580.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 242815730 is about 15582.5456841942. The cubic root of 242815730 is about 623.8673716179.

The spelling of 242815730 in words is "two hundred forty-two million, eight hundred fifteen thousand, seven hundred thirty".