266534892 has 72 divisors (see below), whose sum is σ = 728778960. Its totient is φ = 81648000.

The previous prime is 266534843. The next prime is 266534927. The reversal of 266534892 is 298435662.

266534892 is a `hidden beast` number, since 26 + 6 + 534 + 8 + 92 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 116334 + ... + 118602.

It is an arithmetic number, because the mean of its divisors is an integer number (10121930).

Almost surely, 2^266534892 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 266534892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (364389480).

266534892 is an abundant number, since it is smaller than the sum of its proper divisors (462244068).

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

266534892 is a wasteful number, since it uses less digits than its factorization.

266534892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2543 (or 2538 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The square root of 266534892 is about 16325.8963613028. The cubic root of 266534892 is about 643.5535497336.

The spelling of 266534892 in words is "two hundred sixty-six million, five hundred thirty-four thousand, eight hundred ninety-two".