242715863 has 8 divisors (see below), whose sum is σ = 261877056. Its totient is φ = 223624800.

The previous prime is 242715857. The next prime is 242715871. The reversal of 242715863 is 368517242.

It is a happy number.

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 242715863 - 2¹⁰ = 242714839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242715163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10223 + ... + 24288.

It is an arithmetic number, because the mean of its divisors is an integer number (32734632).

Almost surely, 2^242715863 is an apocalyptic number.

242715863 is a deficient number, since it is larger than the sum of its proper divisors (19161193).

242715863 is a wasteful number, since it uses less digits than its factorization.

242715863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35065.

The product of its digits is 80640, while the sum is 38.

The square root of 242715863 is about 15579.3409039022. The cubic root of 242715863 is about 623.7818303362.

The spelling of 242715863 in words is "two hundred forty-two million, seven hundred fifteen thousand, eight hundred sixty-three".