260838506 has 8 divisors (see below), whose sum is σ = 393884100. Its totient is φ = 129543808.

The previous prime is 260838481. The next prime is 260838509. The reversal of 260838506 is 605838062.

260838506 is digitally balanced in base 3, 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 2 ways, for example, as 258920281 + 1918225 = 16091^2 + 1385^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 260838506.

It is not an unprimeable number, because it can be changed into a prime (260838509) 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, 437351 + ... + 437946.

Almost surely, 2^260838506 is an apocalyptic number.

260838506 is a deficient number, since it is larger than the sum of its proper divisors (133045594).

260838506 is a wasteful number, since it uses less digits than its factorization.

260838506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 875448.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 260838506 is about 16150.4955341934. The cubic root of 260838506 is about 638.9358177377.

It can be divided in two parts, 2608 and 38506, that added together give a palindrome (41114).

The spelling of 260838506 in words is "two hundred sixty million, eight hundred thirty-eight thousand, five hundred six".