266275028 has 6 divisors (see below), whose sum is σ = 465981306. Its totient is φ = 133137512.

The previous prime is 266274989. The next prime is 266275043. The reversal of 266275028 is 820572662.

It can be written as a sum of positive squares in only one way, i.e., 258502084 + 7772944 = 16078^2 + 2788^2 .

It is a junction number, because it is equal to n+sod(n) for n = 266274982 and 266275000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33284375 + ... + 33284382.

It is an arithmetic number, because the mean of its divisors is an integer number (77663551).

Almost surely, 2^266275028 is an apocalyptic number.

It is an amenable number.

266275028 is a deficient number, since it is larger than the sum of its proper divisors (199706278).

266275028 is a wasteful number, since it uses less digits than its factorization.

266275028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66568761 (or 66568759 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 266275028 is about 16317.9357763168. The cubic root of 266275028 is about 643.3443328738.

The spelling of 266275028 in words is "two hundred sixty-six million, two hundred seventy-five thousand, twenty-eight".