260404260 has 96 divisors (see below), whose sum is σ = 745621632. Its totient is φ = 67891200.

The previous prime is 260404241. The next prime is 260404267. The reversal of 260404260 is 62404062.

It is a super-2 number, since 2×260404260² = 135620757252295200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 260404260.

It is not an unprimeable number, because it can be changed into a prime (260404267) 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 31 ways as a sum of consecutive naturals, for example, 587599 + ... + 588041.

It is an arithmetic number, because the mean of its divisors is an integer number (7766892).

Almost surely, 2^260404260 is an apocalyptic number.

260404260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 260404260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (372810816).

260404260 is an abundant number, since it is smaller than the sum of its proper divisors (485217372).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

260404260 is a wasteful number, since it uses less digits than its factorization.

260404260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653 (or 651 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 260404260 is about 16137.0461981120. The cubic root of 260404260 is about 638.5810523315.

The spelling of 260404260 in words is "two hundred sixty million, four hundred four thousand, two hundred sixty".