260404261 has 8 divisors (see below), whose sum is σ = 288015224. Its totient is φ = 233876160.

The previous prime is 260404241. The next prime is 260404267. The reversal of 260404261 is 162404062.

260404261 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 4 ways, for example, as 126562500 + 133841761 = 11250^2 + 11569^2 .

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 260404261 - 2¹¹ = 260402213 is a prime.

It is a super-2 number, since 2×260404261² = 135620758293912242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260404267) 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, 270210 + ... + 271171.

It is an arithmetic number, because the mean of its divisors is an integer number (36001903).

Almost surely, 2^260404261 is an apocalyptic number.

It is an amenable number.

260404261 is a deficient number, since it is larger than the sum of its proper divisors (27610963).

260404261 is a wasteful number, since it uses less digits than its factorization.

260404261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541431.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 260404261 is about 16137.0462290966. The cubic root of 260404261 is about 638.5810531489.

The spelling of 260404261 in words is "two hundred sixty million, four hundred four thousand, two hundred sixty-one".