266428708 has 48 divisors (see below), whose sum is σ = 579608064. Its totient is φ = 104342400.

The previous prime is 266428703. The next prime is 266428727. The reversal of 266428708 is 807824662.

It is not an unprimeable number, because it can be changed into a prime (266428703) 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 15 ways as a sum of consecutive naturals, for example, 33141 + ... + 40387.

It is an arithmetic number, because the mean of its divisors is an integer number (12075168).

Almost surely, 2^266428708 is an apocalyptic number.

266428708 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 266428708, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (289804032).

266428708 is an abundant number, since it is smaller than the sum of its proper divisors (313179356).

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

266428708 is a wasteful number, since it uses less digits than its factorization.

266428708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7372 (or 7370 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 43.

The square root of 266428708 is about 16322.6440260149. The cubic root of 266428708 is about 643.4680772885.

The spelling of 266428708 in words is "two hundred sixty-six million, four hundred twenty-eight thousand, seven hundred eight".