266489436 has 48 divisors (see below), whose sum is σ = 643184640. Its totient is φ = 85824960.

The previous prime is 266489411. The next prime is 266489437. The reversal of 266489436 is 634984662.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266489437) 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, 41566 + ... + 47546.

It is an arithmetic number, because the mean of its divisors is an integer number (13399680).

Almost surely, 2^266489436 is an apocalyptic number.

It is an amenable number.

266489436 is an abundant number, since it is smaller than the sum of its proper divisors (376695204).

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

266489436 is a wasteful number, since it uses less digits than its factorization.

266489436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6114 (or 6112 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 48.

The square root of 266489436 is about 16324.5041578604. The cubic root of 266489436 is about 643.5169628624.

The spelling of 266489436 in words is "two hundred sixty-six million, four hundred eighty-nine thousand, four hundred thirty-six".