266882380 has 24 divisors (see below), whose sum is σ = 560977200. Its totient is φ = 106653120.

The previous prime is 266882359. The next prime is 266882387. The reversal of 266882380 is 83288662.

It is not an unprimeable number, because it can be changed into a prime (266882387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17971 + ... + 29269.

It is an arithmetic number, because the mean of its divisors is an integer number (23374050).

Almost surely, 2^266882380 is an apocalyptic number.

266882380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266882380 is an abundant number, since it is smaller than the sum of its proper divisors (294094820).

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

266882380 is a wasteful number, since it uses less digits than its factorization.

266882380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12489 (or 12487 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 43.

The square root of 266882380 is about 16336.5351283557. The cubic root of 266882380 is about 643.8331004043.

The spelling of 266882380 in words is "two hundred sixty-six million, eight hundred eighty-two thousand, three hundred eighty".