866462225 has 24 divisors (see below), whose sum is σ = 1158571680. Its totient is φ = 640656000.

The previous prime is 866462221. The next prime is 866462227. The reversal of 866462225 is 522264668.

It is not a de Polignac number, because 866462225 - 2² = 866462221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is not an unprimeable number, because it can be changed into a prime (866462221) 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 23 ways as a sum of consecutive naturals, for example, 2771 + ... + 41720.

It is an arithmetic number, because the mean of its divisors is an integer number (48273820).

Almost surely, 2^866462225 is an apocalyptic number.

It is an amenable number.

866462225 is a deficient number, since it is larger than the sum of its proper divisors (292109455).

866462225 is a wasteful number, since it uses less digits than its factorization.

866462225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44561 (or 44556 counting only the distinct ones).

The product of its digits is 276480, while the sum is 41.

The square root of 866462225 is about 29435.7304139034. The cubic root of 866462225 is about 953.3445273787.

The spelling of 866462225 in words is "eight hundred sixty-six million, four hundred sixty-two thousand, two hundred twenty-five".