266242423 has 8 divisors (see below), whose sum is σ = 282370320. Its totient is φ = 250166400.

The previous prime is 266242393. The next prime is 266242439. The reversal of 266242423 is 324242662.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-266242423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266242453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2128 + ... + 23173.

It is an arithmetic number, because the mean of its divisors is an integer number (35296290).

Almost surely, 2^266242423 is an apocalyptic number.

266242423 is a deficient number, since it is larger than the sum of its proper divisors (16127897).

266242423 is a wasteful number, since it uses less digits than its factorization.

266242423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25937.

The product of its digits is 27648, while the sum is 31.

The square root of 266242423 is about 16316.9366916710. The cubic root of 266242423 is about 643.3180729345.

The spelling of 266242423 in words is "two hundred sixty-six million, two hundred forty-two thousand, four hundred twenty-three".