266236992 has 126 divisors (see below), whose sum is σ = 887805438. Its totient is φ = 76059648.

The previous prime is 266236973. The next prime is 266237011. The reversal of 266236992 is 299632662.

It is a happy number.

266236992 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (266236973) and next prime (266237011).

It can be written as a sum of positive squares in only one way, i.e., 244109376 + 22127616 = 15624^2 + 4704^2 .

It is a tau number, because it is divible by the number of its divisors (126).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 23508 + ... + 32940.

Almost surely, 2^266236992 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 266236992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (443902719).

266236992 is an abundant number, since it is smaller than the sum of its proper divisors (621568446).

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

266236992 is a wasteful number, since it uses less digits than its factorization.

266236992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9465 (or 9445 counting only the distinct ones).

The product of its digits is 419904, while the sum is 45.

The square root of 266236992 is about 16316.7702686530. The cubic root of 266236992 is about 643.3136986201.

The spelling of 266236992 in words is "two hundred sixty-six million, two hundred thirty-six thousand, nine hundred ninety-two".