266806460 has 24 divisors (see below), whose sum is σ = 578368896. Its totient is φ = 103279680.

The previous prime is 266806453. The next prime is 266806513. The reversal of 266806460 is 64608662.

266806460 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

266806460 is strictly pandigital in base 9.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214547 + ... + 215786.

It is an arithmetic number, because the mean of its divisors is an integer number (24098704).

Almost surely, 2^266806460 is an apocalyptic number.

266806460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266806460 is an abundant number, since it is smaller than the sum of its proper divisors (311562436).

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

266806460 is a wasteful number, since it uses less digits than its factorization.

266806460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430373 (or 430371 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 266806460 is about 16334.2113369455. The cubic root of 266806460 is about 643.7720442384.

The spelling of 266806460 in words is "two hundred sixty-six million, eight hundred six thousand, four hundred sixty".