242569866 has 32 divisors (see below), whose sum is σ = 604850688. Its totient is φ = 63005040.

The previous prime is 242569807. The next prime is 242569879. The reversal of 242569866 is 668965242.

It is a happy number.

242569866 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 262060 + ... + 262983.

It is an arithmetic number, because the mean of its divisors is an integer number (18901584).

Almost surely, 2^242569866 is an apocalyptic number.

242569866 is an abundant number, since it is smaller than the sum of its proper divisors (362280822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

242569866 is a wasteful number, since it uses less digits than its factorization.

242569866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525066.

The product of its digits is 1244160, while the sum is 48.

The square root of 242569866 is about 15574.6546029117. The cubic root of 242569866 is about 623.6567340736.

The spelling of 242569866 in words is "two hundred forty-two million, five hundred sixty-nine thousand, eight hundred sixty-six".