275490 has 24 divisors (see below), whose sum is σ = 716508. Its totient is φ = 73440.

The previous prime is 275489. The next prime is 275491. The reversal of 275490 is 94572.

It is an interprime number because it is at equal distance from previous prime (275489) and next prime (275491).

It can be written as a sum of positive squares in 2 ways, for example, as 263169 + 12321 = 513^2 + 111^2 .

It is not an unprimeable number, because it can be changed into a prime (275491) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1441 + ... + 1620.

2²⁷⁵⁴⁹⁰ is an apocalyptic number.

275490 is an abundant number, since it is smaller than the sum of its proper divisors (441018).

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

275490 is a wasteful number, since it uses less digits than its factorization.

275490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3074 (or 3071 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 275490 is about 524.8714128241. The cubic root of 275490 is about 65.0681730499.

The spelling of 275490 in words is "two hundred seventy-five thousand, four hundred ninety".