275749128 has 108 divisors (see below), whose sum is σ = 795922335. Its totient is φ = 86233248.

The previous prime is 275749099. The next prime is 275749169. The reversal of 275749128 is 821947572.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

275749128 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 137874564 + 137874564 = 11742^2 + 11742^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=11742.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2677125 + ... + 2677227.

Almost surely, 2^275749128 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 275749128

275749128 is an abundant number, since it is smaller than the sum of its proper divisors (520173207).

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

275749128 is a wasteful number, since it uses less digits than its factorization.

275749128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256 (or 127 counting only the distinct ones).

The product of its digits is 282240, while the sum is 45.

The square root of 275749128 is about 16605.6956493849. The cubic root of 275749128 is about 650.8856786377.

The spelling of 275749128 in words is "two hundred seventy-five million, seven hundred forty-nine thousand, one hundred twenty-eight".