260049289 has 4 divisors (see below), whose sum is σ = 275346324. Its totient is φ = 244752256.

The previous prime is 260049281. The next prime is 260049299. The reversal of 260049289 is 982940062.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 209525625 + 50523664 = 14475^2 + 7108^2 .

It is a cyclic number.

It is not a de Polignac number, because 260049289 - 2³ = 260049281 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (260049281) 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, 7648492 + ... + 7648525.

It is an arithmetic number, because the mean of its divisors is an integer number (68836581).

Almost surely, 2^260049289 is an apocalyptic number.

It is an amenable number.

260049289 is a deficient number, since it is larger than the sum of its proper divisors (15297035).

260049289 is a wasteful number, since it uses less digits than its factorization.

260049289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15297034.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 260049289 is about 16126.0438111770. The cubic root of 260049289 is about 638.2907590369.

The spelling of 260049289 in words is "two hundred sixty million, forty-nine thousand, two hundred eighty-nine".