275988 has 24 divisors (see below), whose sum is σ = 652960. Its totient is φ = 90720.

The previous prime is 275987. The next prime is 275999. The reversal of 275988 is 889572.

It is a super-2 number, since 2×275988² = 152338752288, which contains 22 as substring.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 275988.

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 7 ways as a sum of consecutive naturals, for example, 1203 + ... + 1413.

2²⁷⁵⁹⁸⁸ is an apocalyptic number.

It is an amenable number.

275988 is an abundant number, since it is smaller than the sum of its proper divisors (376972).

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

275988 is a wasteful number, since it uses less digits than its factorization.

275988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327 (or 325 counting only the distinct ones).

The product of its digits is 40320, while the sum is 39.

The square root of 275988 is about 525.3456005336. The cubic root of 275988 is about 65.1073571030.

The spelling of 275988 in words is "two hundred seventy-five thousand, nine hundred eighty-eight".