268240866 has 16 divisors (see below), whose sum is σ = 543273600. Its totient is φ = 88281648.

The previous prime is 268240849. The next prime is 268240877. The reversal of 268240866 is 668042862.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 282481 + ... + 283428.

It is an arithmetic number, because the mean of its divisors is an integer number (33954600).

Almost surely, 2^268240866 is an apocalyptic number.

268240866 is an abundant number, since it is smaller than the sum of its proper divisors (275032734).

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

268240866 is a wasteful number, since it uses less digits than its factorization.

268240866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565993.

The product of its (nonzero) digits is 221184, while the sum is 42.

The square root of 268240866 is about 16378.0605078868. The cubic root of 268240866 is about 644.9236662264.

The spelling of 268240866 in words is "two hundred sixty-eight million, two hundred forty thousand, eight hundred sixty-six".