266669328 has 20 divisors (see below), whose sum is σ = 688895888. Its totient is φ = 88889760.

The previous prime is 266669317. The next prime is 266669329. The reversal of 266669328 is 823966662.

266669328 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×266669328² = 142225060991943168, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 5555611 = 266669328 / (2 + 6 + 6 + 6 + 6 + 9 + 3 + 2 + 8).

It is not an unprimeable number, because it can be changed into a prime (266669329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2777758 + ... + 2777853.

Almost surely, 2^266669328 is an apocalyptic number.

It is an amenable number.

266669328 is an abundant number, since it is smaller than the sum of its proper divisors (422226560).

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

266669328 is a wasteful number, since it uses less digits than its factorization.

266669328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5555622 (or 5555616 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 48.

The square root of 266669328 is about 16330.0131047100. The cubic root of 266669328 is about 643.6617309709.

The spelling of 266669328 in words is "two hundred sixty-six million, six hundred sixty-nine thousand, three hundred twenty-eight".