242688885 has 16 divisors (see below), whose sum is σ = 388497600. Its totient is φ = 129368960.

The previous prime is 242688877. The next prime is 242688899. The reversal of 242688885 is 588886242.

It is not a de Polignac number, because 242688885 - 2³ = 242688877 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 15 ways as a sum of consecutive naturals, for example, 49390 + ... + 54080.

It is an arithmetic number, because the mean of its divisors is an integer number (24281100).

Almost surely, 2^242688885 is an apocalyptic number.

It is an amenable number.

242688885 is a deficient number, since it is larger than the sum of its proper divisors (145808715).

242688885 is a wasteful number, since it uses less digits than its factorization.

242688885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8148.

The product of its digits is 1966080, while the sum is 51.

The square root of 242688885 is about 15578.4750537400. The cubic root of 242688885 is about 623.7587182501.

It can be divided in two parts, 24268 and 8885, that added together give a triangular number (33153 = T₂₅₇).

The spelling of 242688885 in words is "two hundred forty-two million, six hundred eighty-eight thousand, eight hundred eighty-five".