266951328 has 96 divisors (see below), whose sum is σ = 820471680. Its totient is φ = 74403840.

The previous prime is 266951281. The next prime is 266951329. The reversal of 266951328 is 823159662.

266951328 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a zygodrome in base 4.

It is a self number, because there is not a number n which added to its sum of digits gives 266951328.

It is not an unprimeable number, because it can be changed into a prime (266951329) 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, 22708 + ... + 32396.

It is an arithmetic number, because the mean of its divisors is an integer number (8546580).

Almost surely, 2^266951328 is an apocalyptic number.

266951328 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 266951328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (410235840).

266951328 is an abundant number, since it is smaller than the sum of its proper divisors (553520352).

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

266951328 is a wasteful number, since it uses less digits than its factorization.

266951328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9750 (or 9742 counting only the distinct ones).

The product of its digits is 155520, while the sum is 42.

The square root of 266951328 is about 16338.6452314750. The cubic root of 266951328 is about 643.8885395362. Note that the first 3 decimals are identical.

The spelling of 266951328 in words is "two hundred sixty-six million, nine hundred fifty-one thousand, three hundred twenty-eight".