242784805 has 8 divisors (see below), whose sum is σ = 291425400. Its totient is φ = 194172096.

The previous prime is 242784761. The next prime is 242784833. The reversal of 242784805 is 508487242.

242784805 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1852321 + 240932484 = 1361^2 + 15522^2 .

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 242784805 - 2⁷ = 242784677 is a prime.

It is a congruent 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, 30811 + ... + 37879.

It is an arithmetic number, because the mean of its divisors is an integer number (36428175).

Almost surely, 2^242784805 is an apocalyptic number.

It is an amenable number.

242784805 is a deficient number, since it is larger than the sum of its proper divisors (48640595).

242784805 is an equidigital number, since it uses as much as digits as its factorization.

242784805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13943.

The product of its (nonzero) digits is 143360, while the sum is 40.

The square root of 242784805 is about 15581.5533564533. The cubic root of 242784805 is about 623.8408852537.

The spelling of 242784805 in words is "two hundred forty-two million, seven hundred eighty-four thousand, eight hundred five".