260738560 has 80 divisors (see below), whose sum is σ = 629758800. Its totient is φ = 103530496.

The previous prime is 260738459. The next prime is 260738567. The reversal of 260738560 is 65837062.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260738567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 457956 + ... + 458524.

It is an arithmetic number, because the mean of its divisors is an integer number (7871985).

Almost surely, 2^260738560 is an apocalyptic number.

260738560 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 260738560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (314879400).

260738560 is an abundant number, since it is smaller than the sum of its proper divisors (369020240).

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

260738560 is an equidigital number, since it uses as much as digits as its factorization.

260738560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771 (or 755 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 260738560 is about 16147.4010292678. The cubic root of 260738560 is about 638.8541998837.

The spelling of 260738560 in words is "two hundred sixty million, seven hundred thirty-eight thousand, five hundred sixty".