412805218 has 32 divisors (see below), whose sum is σ = 727591680. Its totient is φ = 172005120.

The previous prime is 412805213. The next prime is 412805221. The reversal of 412805218 is 812508214.

It is a self number, because there is not a number n which added to its sum of digits gives 412805218.

It is not an unprimeable number, because it can be changed into a prime (412805213) 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 15 ways as a sum of consecutive naturals, for example, 69718 + ... + 75406.

It is an arithmetic number, because the mean of its divisors is an integer number (22737240).

Almost surely, 2^412805218 is an apocalyptic number.

412805218 is a deficient number, since it is larger than the sum of its proper divisors (314786462).

412805218 is a wasteful number, since it uses less digits than its factorization.

412805218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5842.

The product of its (nonzero) digits is 5120, while the sum is 31.

The square root of 412805218 is about 20317.6085699080. The cubic root of 412805218 is about 744.5863313146.

The spelling of 412805218 in words is "four hundred twelve million, eight hundred five thousand, two hundred eighteen".