260120449 has 4 divisors (see below), whose sum is σ = 265028436. Its totient is φ = 255212464.

The previous prime is 260120437. The next prime is 260120489. The reversal of 260120449 is 944021062.

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 219988224 + 40132225 = 14832^2 + 6335^2 .

It is a cyclic number.

It is not a de Polignac number, because 260120449 - 2¹⁷ = 259989377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (260120489) 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 in 3 ways as a sum of consecutive naturals, for example, 2453914 + ... + 2454019.

It is an arithmetic number, because the mean of its divisors is an integer number (66257109).

Almost surely, 2^260120449 is an apocalyptic number.

It is an amenable number.

260120449 is a deficient number, since it is larger than the sum of its proper divisors (4907987).

260120449 is an equidigital number, since it uses as much as digits as its factorization.

260120449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4907986.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 260120449 is about 16128.2500290639. The cubic root of 260120449 is about 638.3489744471.

It can be divided in two parts, 2601 and 20449, that multiplied together give a square (53187849 = 7293²).

The spelling of 260120449 in words is "two hundred sixty million, one hundred twenty thousand, four hundred forty-nine".