242047886 has 16 divisors (see below), whose sum is σ = 365740704. Its totient is φ = 120138144.

The previous prime is 242047867. The next prime is 242047909. The reversal of 242047886 is 688740242.

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, 185111 + ... + 186413.

It is an arithmetic number, because the mean of its divisors is an integer number (22858794).

Almost surely, 2^242047886 is an apocalyptic number.

242047886 is a deficient number, since it is larger than the sum of its proper divisors (123692818).

242047886 is a wasteful number, since it uses less digits than its factorization.

242047886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1915.

The product of its (nonzero) digits is 172032, while the sum is 41.

The square root of 242047886 is about 15557.8882243060. Note that the first 3 decimals coincide. The cubic root of 242047886 is about 623.2090690613.

The spelling of 242047886 in words is "two hundred forty-two million, forty-seven thousand, eight hundred eighty-six".