260535880 has 128 divisors (see below), whose sum is σ = 689420160. Its totient is φ = 87552000.

The previous prime is 260535859. The next prime is 260535883. The reversal of 260535880 is 88535062.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (260535883) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 455995 + ... + 456565.

It is an arithmetic number, because the mean of its divisors is an integer number (5386095).

Almost surely, 2^260535880 is an apocalyptic number.

260535880 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 260535880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (344710080).

260535880 is an abundant number, since it is smaller than the sum of its proper divisors (428884280).

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

260535880 is a wasteful number, since it uses less digits than its factorization.

260535880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671 (or 667 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 260535880 is about 16141.1238766078. The cubic root of 260535880 is about 638.6886233843.

The spelling of 260535880 in words is "two hundred sixty million, five hundred thirty-five thousand, eight hundred eighty".