242946805 has 4 divisors (see below), whose sum is σ = 291536172. Its totient is φ = 194357440.

The previous prime is 242946797. The next prime is 242946811. The reversal of 242946805 is 508649242.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 89756676 + 153190129 = 9474^2 + 12377^2 .

It is not a de Polignac number, because 242946805 - 2³ = 242946797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24294676 + ... + 24294685.

It is an arithmetic number, because the mean of its divisors is an integer number (72884043).

Almost surely, 2^242946805 is an apocalyptic number.

It is an amenable number.

242946805 is a deficient number, since it is larger than the sum of its proper divisors (48589367).

242946805 is an equidigital number, since it uses as much as digits as its factorization.

242946805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48589366.

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 242946805 is about 15586.7509443116. The cubic root of 242946805 is about 623.9796085888.

The spelling of 242946805 in words is "two hundred forty-two million, nine hundred forty-six thousand, eight hundred five".