275980 has 12 divisors (see below), whose sum is σ = 579600. Its totient is φ = 110384.

The previous prime is 275969. The next prime is 275981. The reversal of 275980 is 89572.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6880 + ... + 6919.

It is an arithmetic number, because the mean of its divisors is an integer number (48300).

2²⁷⁵⁹⁸⁰ is an apocalyptic number.

275980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

275980 is an abundant number, since it is smaller than the sum of its proper divisors (303620).

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

275980 is a wasteful number, since it uses less digits than its factorization.

275980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13808 (or 13806 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 275980 is about 525.3379864430. The cubic root of 275980 is about 65.1067280130.

The spelling of 275980 in words is "two hundred seventy-five thousand, nine hundred eighty".