866788230 has 64 divisors (see below), whose sum is σ = 2593617408. Its totient is φ = 180111360.

The previous prime is 866788229. The next prime is 866788243. The reversal of 866788230 is 32887668.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 866788230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 185307 + ... + 189926.

It is an arithmetic number, because the mean of its divisors is an integer number (40525272).

Almost surely, 2^866788230 is an apocalyptic number.

866788230 is an abundant number, since it is smaller than the sum of its proper divisors (1726829178).

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

866788230 is a wasteful number, since it uses less digits than its factorization.

866788230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375261.

The product of its (nonzero) digits is 774144, while the sum is 48.

The square root of 866788230 is about 29441.2674659227. The cubic root of 866788230 is about 953.4640771614.

The spelling of 866788230 in words is "eight hundred sixty-six million, seven hundred eighty-eight thousand, two hundred thirty".