266947296 has 288 divisors, whose sum is σ = 911635200. Its totient is φ = 68302080.

The previous prime is 266947199. The next prime is 266947297. The reversal of 266947296 is 692749662.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266947297) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3984255 + ... + 3984321.

It is an arithmetic number, because the mean of its divisors is an integer number (3165400).

Almost surely, 2^266947296 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 266947296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (455817600).

266947296 is an abundant number, since it is smaller than the sum of its proper divisors (644687904).

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

266947296 is a wasteful number, since it uses less digits than its factorization.

266947296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123 (or 90 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 51.

The square root of 266947296 is about 16338.5218425658. The cubic root of 266947296 is about 643.8852977822.

The spelling of 266947296 in words is "two hundred sixty-six million, nine hundred forty-seven thousand, two hundred ninety-six".