260441985 has 16 divisors (see below), whose sum is σ = 419120064. Its totient is φ = 138098112.

The previous prime is 260441983. The next prime is 260441999. The reversal of 260441985 is 589144062.

It is not a de Polignac number, because 260441985 - 2¹ = 260441983 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (260441981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47587 + ... + 52776.

It is an arithmetic number, because the mean of its divisors is an integer number (26195004).

Almost surely, 2^260441985 is an apocalyptic number.

It is an amenable number.

260441985 is a deficient number, since it is larger than the sum of its proper divisors (158678079).

260441985 is a wasteful number, since it uses less digits than its factorization.

260441985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100544.

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 260441985 is about 16138.2150499986. The cubic root of 260441985 is about 638.6118881135.

The spelling of 260441985 in words is "two hundred sixty million, four hundred forty-one thousand, nine hundred eighty-five".