260959866 has 8 divisors (see below), whose sum is σ = 521919744. Its totient is φ = 86986620.

The previous prime is 260959849. The next prime is 260959879. The reversal of 260959866 is 668959062.

It is a sphenic number, since it is the product of 3 distinct primes.

260959866 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21746650 + ... + 21746661.

It is an arithmetic number, because the mean of its divisors is an integer number (65239968).

Almost surely, 2^260959866 is an apocalyptic number.

260959866 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

260959866 is a wasteful number, since it uses less digits than its factorization.

260959866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43493316.

The product of its (nonzero) digits is 1399680, while the sum is 51.

The square root of 260959866 is about 16154.2522575327. The cubic root of 260959866 is about 639.0348946587.

The spelling of 260959866 in words is "two hundred sixty million, nine hundred fifty-nine thousand, eight hundred sixty-six".