266389006 has 32 divisors (see below), whose sum is σ = 454356000. Its totient is φ = 116121600.

The previous prime is 266388989. The next prime is 266389009. The reversal of 266389006 is 600983662.

266389006 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 266389006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266389009) 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, 221206 + ... + 222406.

It is an arithmetic number, because the mean of its divisors is an integer number (14198625).

Almost surely, 2^266389006 is an apocalyptic number.

266389006 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

266389006 is a deficient number, since it is larger than the sum of its proper divisors (187966994).

266389006 is a wasteful number, since it uses less digits than its factorization.

266389006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1684.

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 266389006 is about 16321.4278174429. The cubic root of 266389006 is about 643.4361134674.

The spelling of 266389006 in words is "two hundred sixty-six million, three hundred eighty-nine thousand, six".