276530 has 8 divisors (see below), whose sum is σ = 497772. Its totient is φ = 110608.

The previous prime is 276527. The next prime is 276553. The reversal of 276530 is 35672.

It can be written as a sum of positive squares in 2 ways, for example, as 229441 + 47089 = 479^2 + 217^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 276496 and 276505.

It is an unprimeable number.

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, 13817 + ... + 13836.

2²⁷⁶⁵³⁰ is an apocalyptic number.

276530 is a deficient number, since it is larger than the sum of its proper divisors (221242).

276530 is a wasteful number, since it uses less digits than its factorization.

276530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27660.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 276530 is about 525.8611984165. The cubic root of 276530 is about 65.1499496704.

The spelling of 276530 in words is "two hundred seventy-six thousand, five hundred thirty".