266442460 has 24 divisors (see below), whose sum is σ = 564965856. Its totient is φ = 105541440.

The previous prime is 266442457. The next prime is 266442461. The reversal of 266442460 is 64244662.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266442461) by changing a digit.

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, 62611 + ... + 66730.

It is an arithmetic number, because the mean of its divisors is an integer number (23540244).

Almost surely, 2^266442460 is an apocalyptic number.

266442460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266442460 is an abundant number, since it is smaller than the sum of its proper divisors (298523396).

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

266442460 is a wasteful number, since it uses less digits than its factorization.

266442460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129453 (or 129451 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 34.

The square root of 266442460 is about 16323.0652758604. The cubic root of 266442460 is about 643.4791481935.

The spelling of 266442460 in words is "two hundred sixty-six million, four hundred forty-two thousand, four hundred sixty".