275075028 has 168 divisors, whose sum is σ = 793255680. Its totient is φ = 83047680.

The previous prime is 275074991. The next prime is 275075041. The reversal of 275075028 is 820570572.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 275074983 and 275075001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 1536643 + ... + 1536821.

It is an arithmetic number, because the mean of its divisors is an integer number (4721760).

Almost surely, 2^275075028 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 275075028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (396627840).

275075028 is an abundant number, since it is smaller than the sum of its proper divisors (518180652).

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

275075028 is a wasteful number, since it uses less digits than its factorization.

275075028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249 (or 232 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 36.

The square root of 275075028 is about 16585.3859768171. The cubic root of 275075028 is about 650.3548579118.

The spelling of 275075028 in words is "two hundred seventy-five million, seventy-five thousand, twenty-eight".