266281368 has 32 divisors (see below), whose sum is σ = 672172800. Its totient is φ = 87897888.

The previous prime is 266281363. The next prime is 266281417. The reversal of 266281368 is 863182662.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266281363) 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, 51388 + ... + 56331.

It is an arithmetic number, because the mean of its divisors is an integer number (21005400).

Almost surely, 2^266281368 is an apocalyptic number.

It is an amenable number.

266281368 is an abundant number, since it is smaller than the sum of its proper divisors (405891432).

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

266281368 is a wasteful number, since it uses less digits than its factorization.

266281368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107831 (or 107827 counting only the distinct ones).

The product of its digits is 165888, while the sum is 42.

The square root of 266281368 is about 16318.1300399280. The cubic root of 266281368 is about 643.3494388360.

The spelling of 266281368 in words is "two hundred sixty-six million, two hundred eighty-one thousand, three hundred sixty-eight".