260665260 has 48 divisors (see below), whose sum is σ = 734721792. Its totient is φ = 69048000.

The previous prime is 260665231. The next prime is 260665271. The reversal of 260665260 is 62566062.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5326 + ... + 23445.

It is an arithmetic number, because the mean of its divisors is an integer number (15306704).

Almost surely, 2^260665260 is an apocalyptic number.

260665260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

260665260 is an abundant number, since it is smaller than the sum of its proper divisors (474056532).

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

260665260 is a wasteful number, since it uses less digits than its factorization.

260665260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28934 (or 28932 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 260665260 is about 16145.1311546237. The cubic root of 260665260 is about 638.7943284149.

The spelling of 260665260 in words is "two hundred sixty million, six hundred sixty-five thousand, two hundred sixty".