242366505 has 16 divisors (see below), whose sum is σ = 389800320. Its totient is φ = 128590848.

The previous prime is 242366503. The next prime is 242366521. The reversal of 242366505 is 505663242.

It is not a de Polignac number, because 242366505 - 2¹ = 242366503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (242366503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38965 + ... + 44754.

It is an arithmetic number, because the mean of its divisors is an integer number (24362520).

Almost surely, 2^242366505 is an apocalyptic number.

It is an amenable number.

242366505 is a deficient number, since it is larger than the sum of its proper divisors (147433815).

242366505 is a wasteful number, since it uses less digits than its factorization.

242366505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83920.

The product of its (nonzero) digits is 43200, while the sum is 33.

The square root of 242366505 is about 15568.1246462122. The cubic root of 242366505 is about 623.4824022847.

The spelling of 242366505 in words is "two hundred forty-two million, three hundred sixty-six thousand, five hundred five".