266028009 has 8 divisors (see below), whose sum is σ = 381988992. Its totient is φ = 163709520.

The previous prime is 266027999. The next prime is 266028011. The reversal of 266028009 is 900820662.

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

It is not a de Polignac number, because 266028009 - 2⁵ = 266027977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (266028079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3410577 + ... + 3410654.

It is an arithmetic number, because the mean of its divisors is an integer number (47748624).

Almost surely, 2^266028009 is an apocalyptic number.

It is an amenable number.

266028009 is a deficient number, since it is larger than the sum of its proper divisors (115960983).

266028009 is a wasteful number, since it uses less digits than its factorization.

266028009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6821247.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 266028009 is about 16310.3650786854. The cubic root of 266028009 is about 643.1453313098.

The spelling of 266028009 in words is "two hundred sixty-six million, twenty-eight thousand, nine".