814215466 has 8 divisors (see below), whose sum is σ = 1221824484. Its totient is φ = 406940640.

The previous prime is 814215463. The next prime is 814215497. The reversal of 814215466 is 664512418.

It can be written as a sum of positive squares in 2 ways, for example, as 779582241 + 34633225 = 27921^2 + 5885^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (814215463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77365 + ... + 87256.

Almost surely, 2^814215466 is an apocalyptic number.

814215466 is a deficient number, since it is larger than the sum of its proper divisors (407609018).

814215466 is a wasteful number, since it uses less digits than its factorization.

814215466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167096.

The product of its digits is 46080, while the sum is 37.

The square root of 814215466 is about 28534.4610252235. The cubic root of 814215466 is about 933.7840450972.

The spelling of 814215466 in words is "eight hundred fourteen million, two hundred fifteen thousand, four hundred sixty-six".