260849805 has 32 divisors (see below), whose sum is σ = 425458560. Its totient is φ = 136442880.

The previous prime is 260849789. The next prime is 260849839. The reversal of 260849805 is 508948062.

It is not a de Polignac number, because 260849805 - 2⁴ = 260849789 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 230481 + ... + 231609.

It is an arithmetic number, because the mean of its divisors is an integer number (13295580).

Almost surely, 2^260849805 is an apocalyptic number.

It is an amenable number.

260849805 is a deficient number, since it is larger than the sum of its proper divisors (164608755).

260849805 is a wasteful number, since it uses less digits than its factorization.

260849805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1421.

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 260849805 is about 16150.8453339136. The cubic root of 260849805 is about 638.9450434098.

The spelling of 260849805 in words is "two hundred sixty million, eight hundred forty-nine thousand, eight hundred five".