404418866 has 8 divisors (see below), whose sum is σ = 607091484. Its totient is φ = 202055040.

The previous prime is 404418851. The next prime is 404418871. The reversal of 404418866 is 668814404.

It can be written as a sum of positive squares in 2 ways, for example, as 401160841 + 3258025 = 20029^2 + 1805^2 .

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 73895 + ... + 79178.

Almost surely, 2^404418866 is an apocalyptic number.

404418866 is a deficient number, since it is larger than the sum of its proper divisors (202672618).

404418866 is a wasteful number, since it uses less digits than its factorization.

404418866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154396.

The product of its (nonzero) digits is 147456, while the sum is 41.

The square root of 404418866 is about 20110.1682240602. The cubic root of 404418866 is about 739.5095764390.

The spelling of 404418866 in words is "four hundred four million, four hundred eighteen thousand, eight hundred sixty-six".