266940250 has 16 divisors (see below), whose sum is σ = 499712616. Its totient is φ = 106776000.

The previous prime is 266940221. The next prime is 266940251. The reversal of 266940250 is 52049662.

It can be written as a sum of positive squares in 4 ways, for example, as 43467649 + 223472601 = 6593^2 + 14949^2 .

It is not an unprimeable number, because it can be changed into a prime (266940251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 533631 + ... + 534130.

Almost surely, 2^266940250 is an apocalyptic number.

266940250 is a deficient number, since it is larger than the sum of its proper divisors (232772366).

266940250 is a wasteful number, since it uses less digits than its factorization.

266940250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1067778 (or 1067768 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 266940250 is about 16338.3062157618. The cubic root of 266940250 is about 643.8796326742.

The spelling of 266940250 in words is "two hundred sixty-six million, nine hundred forty thousand, two hundred fifty".