260415560 has 32 divisors (see below), whose sum is σ = 589188600. Its totient is φ = 103587840.

The previous prime is 260415541. The next prime is 260415569. The reversal of 260415560 is 65514062.

It can be written as a sum of positive squares in 4 ways, for example, as 190826596 + 69588964 = 13814^2 + 8342^2 .

It is a super-2 number, since 2×260415560² = 135632527780227200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (260415569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10745 + ... + 25224.

Almost surely, 2^260415560 is an apocalyptic number.

260415560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

260415560 is an abundant number, since it is smaller than the sum of its proper divisors (328773040).

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

260415560 is a wasteful number, since it uses less digits than its factorization.

260415560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36161 (or 36157 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 260415560 is about 16137.3963203486. The cubic root of 260415560 is about 638.5902890743.

The spelling of 260415560 in words is "two hundred sixty million, four hundred fifteen thousand, five hundred sixty".