260381449 has 2 divisors, whose sum is σ = 260381450. Its totient is φ = 260381448.

The previous prime is 260381441. The next prime is 260381467. The reversal of 260381449 is 944183062.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 145033849 + 115347600 = 12043^2 + 10740^2 .

It is a cyclic number.

It is not a de Polignac number, because 260381449 - 2³ = 260381441 is a prime.

It is not a weakly prime, because it can be changed into another prime (260381441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130190724 + 130190725.

It is an arithmetic number, because the mean of its divisors is an integer number (130190725).

Almost surely, 2^260381449 is an apocalyptic number.

It is an amenable number.

260381449 is a deficient number, since it is larger than the sum of its proper divisors (1).

260381449 is an equidigital number, since it uses as much as digits as its factorization.

260381449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 260381449 is about 16136.3393928115. The cubic root of 260381449 is about 638.5624055580.

The spelling of 260381449 in words is "two hundred sixty million, three hundred eighty-one thousand, four hundred forty-nine".