260385587 has 24 divisors (see below), whose sum is σ = 329171808. Its totient is φ = 201611520.

The previous prime is 260385581. The next prime is 260385607. The reversal of 260385587 is 785583062.

It is not a de Polignac number, because 260385587 - 2¹⁴ = 260369203 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (260385581) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 145643 + ... + 147419.

It is an arithmetic number, because the mean of its divisors is an integer number (13715492).

Almost surely, 2^260385587 is an apocalyptic number.

260385587 is a deficient number, since it is larger than the sum of its proper divisors (68786221).

260385587 is a wasteful number, since it uses less digits than its factorization.

260385587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1979 (or 1968 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 44.

The square root of 260385587 is about 16136.4676122130. The cubic root of 260385587 is about 638.5657882328.

The spelling of 260385587 in words is "two hundred sixty million, three hundred eighty-five thousand, five hundred eighty-seven".