275630845 has 32 divisors (see below), whose sum is σ = 385661952. Its totient is φ = 185213952.

The previous prime is 275630833. The next prime is 275630863. The reversal of 275630845 is 548036572.

It is not a de Polignac number, because 275630845 - 2¹³ = 275622653 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 275630798 and 275630807.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 595084 + ... + 595546.

It is an arithmetic number, because the mean of its divisors is an integer number (12051936).

Almost surely, 2^275630845 is an apocalyptic number.

It is an amenable number.

275630845 is a deficient number, since it is larger than the sum of its proper divisors (110031107).

275630845 is a wasteful number, since it uses less digits than its factorization.

275630845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781.

The product of its (nonzero) digits is 201600, while the sum is 40.

The square root of 275630845 is about 16602.1337484072. The cubic root of 275630845 is about 650.7925991998.

The spelling of 275630845 in words is "two hundred seventy-five million, six hundred thirty thousand, eight hundred forty-five".