275630 has 16 divisors (see below), whose sum is σ = 508464. Its totient is φ = 107520.

The previous prime is 275623. The next prime is 275641. The reversal of 275630 is 36572.

275630 = 261² + 262² + ... + 264².

It is a junction number, because it is equal to n+sod(n) for n = 275596 and 275605.

It is a congruent number.

It is an unprimeable number.

275630 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110 + ... + 750.

It is an arithmetic number, because the mean of its divisors is an integer number (31779).

2²⁷⁵⁶³⁰ is an apocalyptic number.

275630 is a deficient number, since it is larger than the sum of its proper divisors (232834).

275630 is a wasteful number, since it uses less digits than its factorization.

275630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691.

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

The square root of 275630 is about 525.0047618832. The cubic root of 275630 is about 65.0791934155.

Adding to 275630 its sum of digits (23), we get a triangular number (275653 = T₇₄₂).

The spelling of 275630 in words is "two hundred seventy-five thousand, six hundred thirty".