260988256 has 96 divisors (see below), whose sum is σ = 569963520. Its totient is φ = 117158400.

The previous prime is 260988191. The next prime is 260988281. The reversal of 260988256 is 652889062.

It is a super-3 number, since 3×260988256³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1149615 + ... + 1149841.

It is an arithmetic number, because the mean of its divisors is an integer number (5937120).

Almost surely, 2^260988256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 260988256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (284981760).

260988256 is an abundant number, since it is smaller than the sum of its proper divisors (308975264).

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

260988256 is a wasteful number, since it uses less digits than its factorization.

260988256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348 (or 340 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 46.

The square root of 260988256 is about 16155.1309496395. The cubic root of 260988256 is about 639.0580674975.

The spelling of 260988256 in words is "two hundred sixty million, nine hundred eighty-eight thousand, two hundred fifty-six".