275028 has 48 divisors (see below), whose sum is σ = 724416. Its totient is φ = 80640.

The previous prime is 275027. The next prime is 275039. The reversal of 275028 is 820572.

It is a plaindrome in base 7.

It is a junction number, because it is equal to n+sod(n) for n = 274989 and 275007.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 275028.

It is not an unprimeable number, because it can be changed into a prime (275027) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 6375 + ... + 6417.

It is an arithmetic number, because the mean of its divisors is an integer number (15092).

2²⁷⁵⁰²⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 275028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (362208).

275028 is an abundant number, since it is smaller than the sum of its proper divisors (449388).

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

275028 is a wasteful number, since it uses less digits than its factorization.

275028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104 (or 102 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 275028 is about 524.4311203581. The cubic root of 275028 is about 65.0317793319.

The spelling of 275028 in words is "two hundred seventy-five thousand, twenty-eight".