266989041 has 30 divisors (see below), whose sum is σ = 438405506. Its totient is φ = 161805600.

The previous prime is 266989033. The next prime is 266989049. The reversal of 266989041 is 140989662.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (266989033) and next prime (266989049).

It can be written as a sum of positive squares in only one way, i.e., 266832225 + 156816 = 16335^2 + 396^2 .

It is not a de Polignac number, because 266989041 - 2³ = 266989033 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266989049) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 3820 + ... + 23421.

Almost surely, 2^266989041 is an apocalyptic number.

It is an amenable number.

266989041 is a deficient number, since it is larger than the sum of its proper divisors (171416465).

266989041 is a wasteful number, since it uses less digits than its factorization.

266989041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27275 (or 27255 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 266989041 is about 16339.7992949730. The cubic root of 266989041 is about 643.9188594517.

The spelling of 266989041 in words is "two hundred sixty-six million, nine hundred eighty-nine thousand, forty-one".