266493328 has 20 divisors (see below), whose sum is σ = 526074588. Its totient is φ = 130732160.

The previous prime is 266493319. The next prime is 266493347. The reversal of 266493328 is 823394662.

It can be written as a sum of positive squares in 2 ways, for example, as 137170944 + 129322384 = 11712^2 + 11372^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156283 + ... + 157978.

Almost surely, 2^266493328 is an apocalyptic number.

It is an amenable number.

266493328 is a deficient number, since it is larger than the sum of its proper divisors (259581260).

266493328 is a wasteful number, since it uses less digits than its factorization.

266493328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314322 (or 314316 counting only the distinct ones).

The product of its digits is 373248, while the sum is 43.

The square root of 266493328 is about 16324.6233647212. The cubic root of 266493328 is about 643.5200956392.

The spelling of 266493328 in words is "two hundred sixty-six million, four hundred ninety-three thousand, three hundred twenty-eight".