266928 has 40 divisors (see below), whose sum is σ = 708288. Its totient is φ = 86592.

The previous prime is 266927. The next prime is 266933. The reversal of 266928 is 829662.

It is not an unprimeable number, because it can be changed into a prime (266921) 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, 3175 + ... + 3257.

2²⁶⁶⁹²⁸ 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 266928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (354144).

266928 is an abundant number, since it is smaller than the sum of its proper divisors (441360).

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

266928 is a wasteful number, since it uses less digits than its factorization.

266928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161 (or 155 counting only the distinct ones).

The product of its digits is 10368, while the sum is 33.

The square root of 266928 is about 516.6507524431. The cubic root of 266928 is about 64.3869783221.

The spelling of 266928 in words is "two hundred sixty-six thousand, nine hundred twenty-eight".