266341020 has 48 divisors (see below), whose sum is σ = 813552768. Its totient is φ = 64567360.

The previous prime is 266341001. The next prime is 266341021. The reversal of 266341020 is 20143662.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266341021) 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, 201114 + ... + 202433.

It is an arithmetic number, because the mean of its divisors is an integer number (16949016).

Almost surely, 2^266341020 is an apocalyptic number.

266341020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266341020 is an abundant number, since it is smaller than the sum of its proper divisors (547211748).

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

266341020 is a wasteful number, since it uses less digits than its factorization.

266341020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403570 (or 403568 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 266341020 is about 16319.9577205335. The cubic root of 266341020 is about 643.3974760127.

Adding to 266341020 its reverse (20143662), we get a palindrome (286484682).

The spelling of 266341020 in words is "two hundred sixty-six million, three hundred forty-one thousand, twenty".