242550305 has 8 divisors (see below), whose sum is σ = 308181672. Its totient is φ = 182626048.

The previous prime is 242550289. The next prime is 242550323. The reversal of 242550305 is 503055242.

It can be written as a sum of positive squares in 4 ways, for example, as 34527376 + 208022929 = 5876^2 + 14423^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 242550305 - 2⁴ = 242550289 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1426682 + ... + 1426851.

It is an arithmetic number, because the mean of its divisors is an integer number (38522709).

Almost surely, 2^242550305 is an apocalyptic number.

It is an amenable number.

242550305 is a deficient number, since it is larger than the sum of its proper divisors (65631367).

242550305 is a wasteful number, since it uses less digits than its factorization.

242550305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2853555.

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 242550305 is about 15574.0266148482. The cubic root of 242550305 is about 623.6399695876.

The spelling of 242550305 in words is "two hundred forty-two million, five hundred fifty thousand, three hundred five".