266804712 has 128 divisors (see below), whose sum is σ = 776563200. Its totient is φ = 84787200.

The previous prime is 266804663. The next prime is 266804719. The reversal of 266804712 is 217408662.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266804719) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 415912 + ... + 416552.

It is an arithmetic number, because the mean of its divisors is an integer number (6066900).

Almost surely, 2^266804712 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 266804712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (388281600).

266804712 is an abundant number, since it is smaller than the sum of its proper divisors (509758488).

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

266804712 is a wasteful number, since it uses less digits than its factorization.

266804712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744 (or 734 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 266804712 is about 16334.1578295301. The cubic root of 266804712 is about 643.7706383304.

The spelling of 266804712 in words is "two hundred sixty-six million, eight hundred four thousand, seven hundred twelve".