266533488 has 120 divisors (see below), whose sum is σ = 808927392. Its totient is φ = 81437184.

The previous prime is 266533483. The next prime is 266533489. The reversal of 266533488 is 884335662.

It is a happy number.

It is a super-2 number, since 2×266533488² = 142080200450892288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266533481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 323445 + ... + 324267.

Almost surely, 2^266533488 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 266533488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (404463696).

266533488 is an abundant number, since it is smaller than the sum of its proper divisors (542393904).

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

266533488 is a wasteful number, since it uses less digits than its factorization.

266533488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1023 (or 1014 counting only the distinct ones).

The product of its digits is 829440, while the sum is 45.

The square root of 266533488 is about 16325.8533620757. The cubic root of 266533488 is about 643.5524197367.

The spelling of 266533488 in words is "two hundred sixty-six million, five hundred thirty-three thousand, four hundred eighty-eight".