266930928 has 120 divisors (see below), whose sum is σ = 834113280. Its totient is φ = 78986880.

The previous prime is 266930903. The next prime is 266930933. The reversal of 266930928 is 829039662.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66153 + ... + 70071.

It is an arithmetic number, because the mean of its divisors is an integer number (6950944).

Almost surely, 2^266930928 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 266930928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (417056640).

266930928 is an abundant number, since it is smaller than the sum of its proper divisors (567182352).

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

266930928 is a wasteful number, since it uses less digits than its factorization.

266930928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3987 (or 3978 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 266930928 is about 16338.0209327813. The cubic root of 266930928 is about 643.8721374691.

The spelling of 266930928 in words is "two hundred sixty-six million, nine hundred thirty thousand, nine hundred twenty-eight".