266245144 has 64 divisors (see below), whose sum is σ = 563824800. Its totient is φ = 116812800.

The previous prime is 266245141. The next prime is 266245181. The reversal of 266245144 is 441542662.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266245141) 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, 392934 + ... + 393610.

Almost surely, 2^266245144 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 266245144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281912400).

266245144 is an abundant number, since it is smaller than the sum of its proper divisors (297579656).

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

266245144 is a wasteful number, since it uses less digits than its factorization.

266245144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844 (or 840 counting only the distinct ones).

The product of its digits is 46080, while the sum is 34.

The square root of 266245144 is about 16317.0200710792. The cubic root of 266245144 is about 643.3202644993.

The spelling of 266245144 in words is "two hundred sixty-six million, two hundred forty-five thousand, one hundred forty-four".