260308891 has 8 divisors (see below), whose sum is σ = 271728000. Its totient is φ = 249078720.

The previous prime is 260308861. The next prime is 260308957. The reversal of 260308891 is 198803062.

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

It is a cyclic number.

It is not a de Polignac number, because 260308891 - 2²¹ = 258211739 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 260308891.

It is not an unprimeable number, because it can be changed into a prime (260308861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44416 + ... + 49933.

It is an arithmetic number, because the mean of its divisors is an integer number (33966000).

Almost surely, 2^260308891 is an apocalyptic number.

260308891 is a deficient number, since it is larger than the sum of its proper divisors (11419109).

260308891 is an equidigital number, since it uses as much as digits as its factorization.

260308891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94469.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 260308891 is about 16134.0909567289. The cubic root of 260308891 is about 638.5030860282.

The spelling of 260308891 in words is "two hundred sixty million, three hundred eight thousand, eight hundred ninety-one".