266408241 has 48 divisors (see below), whose sum is σ = 431609472. Its totient is φ = 145277440.

The previous prime is 266408237. The next prime is 266408249. The reversal of 266408241 is 142804662.

It is not a de Polignac number, because 266408241 - 2² = 266408237 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (266408249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 140995 + ... + 142871.

It is an arithmetic number, because the mean of its divisors is an integer number (8991864).

Almost surely, 2^266408241 is an apocalyptic number.

It is an amenable number.

266408241 is a deficient number, since it is larger than the sum of its proper divisors (165201231).

266408241 is a wasteful number, since it uses less digits than its factorization.

266408241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1942 (or 1931 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 266408241 is about 16322.0170628510. The cubic root of 266408241 is about 643.4515998370.

The spelling of 266408241 in words is "two hundred sixty-six million, four hundred eight thousand, two hundred forty-one".