260688530 has 8 divisors (see below), whose sum is σ = 469239372. Its totient is φ = 104275408.

The previous prime is 260688529. The next prime is 260688539. The reversal of 260688530 is 35886062.

260688530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 249039961 + 11648569 = 15781^2 + 3413^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (260688539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13034417 + ... + 13034436.

Almost surely, 2^260688530 is an apocalyptic number.

260688530 is a deficient number, since it is larger than the sum of its proper divisors (208550842).

260688530 is a wasteful number, since it uses less digits than its factorization.

260688530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26068860.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 260688530 is about 16145.8517892368. The cubic root of 260688530 is about 638.8133365759.

The spelling of 260688530 in words is "two hundred sixty million, six hundred eighty-eight thousand, five hundred thirty".