242406565 has 8 divisors (see below), whose sum is σ = 293768568. Its totient is φ = 192004800.

The previous prime is 242406557. The next prime is 242406607. The reversal of 242406565 is 565604242.

It can be written as a sum of positive squares in 4 ways, for example, as 83192641 + 159213924 = 9121^2 + 12618^2 .

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

It is not a de Polignac number, because 242406565 - 2³ = 242406557 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 242406565.

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, 239502 + ... + 240511.

It is an arithmetic number, because the mean of its divisors is an integer number (36721071).

Almost surely, 2^242406565 is an apocalyptic number.

It is an amenable number.

242406565 is a deficient number, since it is larger than the sum of its proper divisors (51362003).

242406565 is a wasteful number, since it uses less digits than its factorization.

242406565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480119.

The product of its (nonzero) digits is 57600, while the sum is 34.

The square root of 242406565 is about 15569.4111963170. The cubic root of 242406565 is about 623.5167515430.

The spelling of 242406565 in words is "two hundred forty-two million, four hundred six thousand, five hundred sixty-five".