260555980 has 48 divisors (see below), whose sum is σ = 558321120. Its totient is φ = 102117888.

The previous prime is 260555969. The next prime is 260556001. The reversal of 260555980 is 89555062.

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, 260842 + ... + 261838.

It is an arithmetic number, because the mean of its divisors is an integer number (11631690).

Almost surely, 2^260555980 is an apocalyptic number.

260555980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

260555980 is an abundant number, since it is smaller than the sum of its proper divisors (297765140).

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

260555980 is a wasteful number, since it uses less digits than its factorization.

260555980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1258 (or 1256 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 40.

The square root of 260555980 is about 16141.7464978236. The cubic root of 260555980 is about 638.7050476240.

It can be divided in two parts, 2605 and 55980, that added together give a palindrome (58585).

The spelling of 260555980 in words is "two hundred sixty million, five hundred fifty-five thousand, nine hundred eighty".