260297856 has 288 divisors, whose sum is σ = 931806720. Its totient is φ = 68290560.

The previous prime is 260297837. The next prime is 260297867. The reversal of 260297856 is 658792062.

It is a tau number, because it is divible by the number of its divisors (288).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1362721 + ... + 1362911.

It is an arithmetic number, because the mean of its divisors is an integer number (3235440).

Almost surely, 2^260297856 is an apocalyptic number.

260297856 is a gapful number since it is divisible by the number (26) 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 260297856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (465903360).

260297856 is an abundant number, since it is smaller than the sum of its proper divisors (671508864).

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

260297856 is a wasteful number, since it uses less digits than its factorization.

260297856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244 (or 216 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 260297856 is about 16133.7489753622. The cubic root of 260297856 is about 638.4940634383.

It can be divided in two parts, 260 and 297856, that added together give a square (298116 = 546²).

The spelling of 260297856 in words is "two hundred sixty million, two hundred ninety-seven thousand, eight hundred fifty-six".