266204480 has 28 divisors (see below), whose sum is σ = 633900180. Its totient is φ = 106481664.

The previous prime is 266204473. The next prime is 266204509. The reversal of 266204480 is 84402662.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 45265984 + 220938496 = 6728^2 + 14864^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 415625 + ... + 416264.

Almost surely, 2^266204480 is an apocalyptic number.

266204480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266204480 is an abundant number, since it is smaller than the sum of its proper divisors (367695700).

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

266204480 is an equidigital number, since it uses as much as digits as its factorization.

266204480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 831906 (or 831896 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 266204480 is about 16315.7739626412. The cubic root of 266204480 is about 643.2875110917.

The spelling of 266204480 in words is "two hundred sixty-six million, two hundred four thousand, four hundred eighty".