260001443 has 16 divisors (see below), whose sum is σ = 290394720. Its totient is φ = 231135744.

The previous prime is 260001437. The next prime is 260001449. The reversal of 260001443 is 344100062.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (260001437) and next prime (260001449).

It is a cyclic number.

It is not a de Polignac number, because 260001443 - 2²⁰ = 258952867 is a prime.

It is a Duffinian number.

260001443 is a modest number, since divided by 1443 gives 260 as remainder.

It is not an unprimeable number, because it can be changed into a prime (260001449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 222980 + ... + 224142.

It is an arithmetic number, because the mean of its divisors is an integer number (18149670).

Almost surely, 2^260001443 is an apocalyptic number.

260001443 is a deficient number, since it is larger than the sum of its proper divisors (30393277).

260001443 is a wasteful number, since it uses less digits than its factorization.

260001443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1798.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 260001443 is about 16124.5602420655. The cubic root of 260001443 is about 638.2516106471.

The spelling of 260001443 in words is "two hundred sixty million, one thousand, four hundred forty-three".