866422210 has 32 divisors (see below), whose sum is σ = 1576200384. Its totient is φ = 342888000.

The previous prime is 866422201. The next prime is 866422231. The reversal of 866422210 is 12224668.

It is a nialpdrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 550725 + ... + 552295.

It is an arithmetic number, because the mean of its divisors is an integer number (49256262).

Almost surely, 2^866422210 is an apocalyptic number.

866422210 is a deficient number, since it is larger than the sum of its proper divisors (709778174).

866422210 is a wasteful number, since it uses less digits than its factorization.

866422210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2130.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 866422210 is about 29435.0507048994. The cubic root of 866422210 is about 953.3298513519.

Adding to 866422210 its reverse (12224668), we get a palindrome (878646878).

The spelling of 866422210 in words is "eight hundred sixty-six million, four hundred twenty-two thousand, two hundred ten".