266844672 has 160 divisors (see below), whose sum is σ = 802032000. Its totient is φ = 87588864.

The previous prime is 266844671. The next prime is 266844679. The reversal of 266844672 is 276448662.

It is not an unprimeable number, because it can be changed into a prime (266844671) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1340829 + ... + 1341027.

It is an arithmetic number, because the mean of its divisors is an integer number (5012700).

Almost surely, 2^266844672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 266844672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (401016000).

266844672 is an abundant number, since it is smaller than the sum of its proper divisors (535187328).

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

266844672 is an equidigital number, since it uses as much as digits as its factorization.

266844672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323 (or 301 counting only the distinct ones).

The product of its digits is 774144, while the sum is 45.

The square root of 266844672 is about 16335.3809872926. The cubic root of 266844672 is about 643.8027764316.

The spelling of 266844672 in words is "two hundred sixty-six million, eight hundred forty-four thousand, six hundred seventy-two".