266327904 has 48 divisors (see below), whose sum is σ = 701652672. Its totient is φ = 88453248.

The previous prime is 266327903. The next prime is 266327969. The reversal of 266327904 is 409723662.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266327903) 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, 22267 + ... + 32069.

It is an arithmetic number, because the mean of its divisors is an integer number (14617764).

Almost surely, 2^266327904 is an apocalyptic number.

266327904 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

266327904 is an abundant number, since it is smaller than the sum of its proper divisors (435324768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

266327904 is a wasteful number, since it uses less digits than its factorization.

266327904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10099 (or 10091 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 39.

The square root of 266327904 is about 16319.5558763099. Note that the first 3 decimals coincide. The cubic root of 266327904 is about 643.3869144404.

The spelling of 266327904 in words is "two hundred sixty-six million, three hundred twenty-seven thousand, nine hundred four".