266245408 has 96 divisors (see below), whose sum is σ = 624117312. Its totient is φ = 110208000.

The previous prime is 266245403. The next prime is 266245409. The reversal of 266245408 is 804542662.

It is not an unprimeable number, because it can be changed into a prime (266245403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 379458 + ... + 380158.

It is an arithmetic number, because the mean of its divisors is an integer number (6501222).

Almost surely, 2^266245408 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 266245408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (312058656).

266245408 is an abundant number, since it is smaller than the sum of its proper divisors (357871904).

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

266245408 is a wasteful number, since it uses less digits than its factorization.

266245408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818 (or 810 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 37.

The square root of 266245408 is about 16317.0281607896. The cubic root of 266245408 is about 643.3204771310.

The spelling of 266245408 in words is "two hundred sixty-six million, two hundred forty-five thousand, four hundred eight".