266280960 has 224 divisors, whose sum is σ = 934224192. Its totient is φ = 64225280.

The previous prime is 266280947. The next prime is 266280967. The reversal of 266280960 is 69082662.

It is not an unprimeable number, because it can be changed into a prime (266280967) 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, 1351582 + ... + 1351778.

Almost surely, 2^266280960 is an apocalyptic number.

266280960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 266280960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (467112096).

266280960 is an abundant number, since it is smaller than the sum of its proper divisors (667943232).

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

266280960 is a wasteful number, since it uses less digits than its factorization.

266280960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242 (or 218 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 266280960 is about 16318.1175384908. The cubic root of 266280960 is about 643.3491102529.

The spelling of 266280960 in words is "two hundred sixty-six million, two hundred eighty thousand, nine hundred sixty".