406406806 has 12 divisors (see below), whose sum is σ = 660111012. Its totient is φ = 187572216.

The previous prime is 406406771. The next prime is 406406839. The reversal of 406406806 is 608604604.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 600856 + ... + 601531.

It is an arithmetic number, because the mean of its divisors is an integer number (55009251).

Almost surely, 2^406406806 is an apocalyptic number.

406406806 is a deficient number, since it is larger than the sum of its proper divisors (253704206).

406406806 is a wasteful number, since it uses less digits than its factorization.

406406806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1202415 (or 1202402 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 406406806 is about 20159.5338735795. The cubic root of 406406806 is about 740.7192945179.

The spelling of 406406806 in words is "four hundred six million, four hundred six thousand, eight hundred six".