242534815 has 8 divisors (see below), whose sum is σ = 298908000. Its totient is φ = 188783712.

The previous prime is 242534779. The next prime is 242534827. The reversal of 242534815 is 518435242.

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 242534815 - 2⁷ = 242534687 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 655315 + ... + 655684.

It is an arithmetic number, because the mean of its divisors is an integer number (37363500).

Almost surely, 2^242534815 is an apocalyptic number.

242534815 is a deficient number, since it is larger than the sum of its proper divisors (56373185).

242534815 is a wasteful number, since it uses less digits than its factorization.

242534815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1311041.

The product of its digits is 38400, while the sum is 34.

The square root of 242534815 is about 15573.5293045604. The cubic root of 242534815 is about 623.6266934568.

The spelling of 242534815 in words is "two hundred forty-two million, five hundred thirty-four thousand, eight hundred fifteen".