866834260 has 12 divisors (see below), whose sum is σ = 1820351988. Its totient is φ = 346733696.

The previous prime is 866834257. The next prime is 866834299. The reversal of 866834260 is 62438668.

It can be written as a sum of positive squares in 2 ways, for example, as 284866884 + 581967376 = 16878^2 + 24124^2 .

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, 21670837 + ... + 21670876.

It is an arithmetic number, because the mean of its divisors is an integer number (151695999).

Almost surely, 2^866834260 is an apocalyptic number.

It is an amenable number.

866834260 is an abundant number, since it is smaller than the sum of its proper divisors (953517728).

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

866834260 is a wasteful number, since it uses less digits than its factorization.

866834260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43341722 (or 43341720 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 43.

The square root of 866834260 is about 29442.0491814004. The cubic root of 866834260 is about 953.4809544766.

The spelling of 866834260 in words is "eight hundred sixty-six million, eight hundred thirty-four thousand, two hundred sixty".