266442128 has 10 divisors (see below), whose sum is σ = 516231654. Its totient is φ = 133221056.

The previous prime is 266442119. The next prime is 266442161. The reversal of 266442128 is 821244662.

266442128 is digitally balanced in base 2, 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., 234947584 + 31494544 = 15328^2 + 5612^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8326301 + ... + 8326332.

Almost surely, 2^266442128 is an apocalyptic number.

It is an amenable number.

266442128 is a deficient number, since it is larger than the sum of its proper divisors (249789526).

266442128 is a wasteful number, since it uses less digits than its factorization.

266442128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16652641 (or 16652635 counting only the distinct ones).

The product of its digits is 36864, while the sum is 35.

The square root of 266442128 is about 16323.0551061987. The cubic root of 266442128 is about 643.4788809249.

The spelling of 266442128 in words is "two hundred sixty-six million, four hundred forty-two thousand, one hundred twenty-eight".