242978888 has 16 divisors (see below), whose sum is σ = 455758380. Its totient is φ = 121443328.

The previous prime is 242978881. The next prime is 242978893. The reversal of 242978888 is 888879242.

It can be written as a sum of positive squares in 2 ways, for example, as 217798564 + 25180324 = 14758^2 + 5018^2 .

It is not an unprimeable number, because it can be changed into a prime (242978881) 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 3 ways as a sum of consecutive naturals, for example, 28856 + ... + 36312.

Almost surely, 2^242978888 is an apocalyptic number.

It is an amenable number.

242978888 is a deficient number, since it is larger than the sum of its proper divisors (212779492).

242978888 is a wasteful number, since it uses less digits than its factorization.

242978888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11536 (or 11532 counting only the distinct ones).

The product of its digits is 4128768, while the sum is 56.

The square root of 242978888 is about 15587.7800856953. The cubic root of 242978888 is about 624.0070744870.

The spelling of 242978888 in words is "two hundred forty-two million, nine hundred seventy-eight thousand, eight hundred eighty-eight".