275990 has 32 divisors (see below), whose sum is σ = 586656. Its totient is φ = 92160.

The previous prime is 275987. The next prime is 275999. The reversal of 275990 is 99572.

275990 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275999) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1334 + ... + 1526.

It is an arithmetic number, because the mean of its divisors is an integer number (18333).

2²⁷⁵⁹⁹⁰ is an apocalyptic number.

275990 is an abundant number, since it is smaller than the sum of its proper divisors (310666).

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

275990 is a wasteful number, since it uses less digits than its factorization.

275990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224.

The product of its (nonzero) digits is 5670, while the sum is 32.

The square root of 275990 is about 525.3475040390. The cubic root of 275990 is about 65.1075143736.

The spelling of 275990 in words is "two hundred seventy-five thousand, nine hundred ninety".