260509433 has 4 divisors (see below), whose sum is σ = 260541840. Its totient is φ = 260477028.

The previous prime is 260509429. The next prime is 260509439. The reversal of 260509433 is 334905062.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 260509433 - 2² = 260509429 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 260509433.

It is not an unprimeable number, because it can be changed into a prime (260509439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5966 + ... + 23592.

It is an arithmetic number, because the mean of its divisors is an integer number (65135460).

Almost surely, 2^260509433 is an apocalyptic number.

It is an amenable number.

260509433 is a deficient number, since it is larger than the sum of its proper divisors (32407).

260509433 is a wasteful number, since it uses less digits than its factorization.

260509433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32406.

The product of its (nonzero) digits is 19440, while the sum is 32.

The square root of 260509433 is about 16140.3046129867. The cubic root of 260509433 is about 638.6670115566.

The spelling of 260509433 in words is "two hundred sixty million, five hundred nine thousand, four hundred thirty-three".