266550460 has 24 divisors (see below), whose sum is σ = 610643376. Its totient is φ = 96927360.

The previous prime is 266550407. The next prime is 266550467. The reversal of 266550460 is 64055662.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266550467) 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, 605577 + ... + 606016.

It is an arithmetic number, because the mean of its divisors is an integer number (25443474).

Almost surely, 2^266550460 is an apocalyptic number.

266550460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266550460 is an abundant number, since it is smaller than the sum of its proper divisors (344092916).

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

266550460 is a wasteful number, since it uses less digits than its factorization.

266550460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1211613 (or 1211611 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 266550460 is about 16326.3731428631. The cubic root of 266550460 is about 643.5660792334.

The spelling of 266550460 in words is "two hundred sixty-six million, five hundred fifty thousand, four hundred sixty".