266215232 has 56 divisors (see below), whose sum is σ = 563880000. Its totient is φ = 124333056.

The previous prime is 266215219. The next prime is 266215247. The reversal of 266215232 is 232512662.

It is a junction number, because it is equal to n+sod(n) for n = 266215195 and 266215204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87269 + ... + 90267.

Almost surely, 2^266215232 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 266215232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281940000).

266215232 is an abundant number, since it is smaller than the sum of its proper divisors (297664768).

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

266215232 is a wasteful number, since it uses less digits than its factorization.

266215232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3103 (or 3093 counting only the distinct ones).

The product of its digits is 8640, while the sum is 29.

The square root of 266215232 is about 16316.1034564016. The cubic root of 266215232 is about 643.2961717701.

Adding to 266215232 its reverse (232512662), we get a palindrome (498727894).

The spelling of 266215232 in words is "two hundred sixty-six million, two hundred fifteen thousand, two hundred thirty-two".