266221848 has 32 divisors (see below), whose sum is σ = 667254960. Its totient is φ = 88513920.

The previous prime is 266221847. The next prime is 266221903. The reversal of 266221848 is 848122662.

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 (266221843) 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, 4443 + ... + 23498.

Almost surely, 2^266221848 is an apocalyptic number.

It is an amenable number.

266221848 is an abundant number, since it is smaller than the sum of its proper divisors (401033112).

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

266221848 is a wasteful number, since it uses less digits than its factorization.

266221848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28347 (or 28343 counting only the distinct ones).

The product of its digits is 73728, while the sum is 39.

The square root of 266221848 is about 16316.3061996274. The cubic root of 266221848 is about 643.3015008068.

The spelling of 266221848 in words is "two hundred sixty-six million, two hundred twenty-one thousand, eight hundred forty-eight".