266445312 has 80 divisors (see below), whose sum is σ = 811263552. Its totient is φ = 76124160.

The previous prime is 266445293. The next prime is 266445331. The reversal of 266445312 is 213544662.

It is an interprime number because it is at equal distance from previous prime (266445293) and next prime (266445331).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1639 + ... + 23142.

Almost surely, 2^266445312 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 266445312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (405631776).

266445312 is an abundant number, since it is smaller than the sum of its proper divisors (544818240).

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

266445312 is an equidigital number, since it uses as much as digits as its factorization.

266445312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24809 (or 24793 counting only the distinct ones).

The product of its digits is 34560, while the sum is 33.

The square root of 266445312 is about 16323.1526366692. The cubic root of 266445312 is about 643.4814441189.

Adding to 266445312 its reverse (213544662), we get a palindrome (479989974).

The spelling of 266445312 in words is "two hundred sixty-six million, four hundred forty-five thousand, three hundred twelve".