406822808 has 64 divisors (see below), whose sum is σ = 886878720. Its totient is φ = 171360000.

The previous prime is 406822777. The next prime is 406822811. The reversal of 406822808 is 808228604.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1447628 + ... + 1447908.

It is an arithmetic number, because the mean of its divisors is an integer number (13857480).

Almost surely, 2^406822808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 406822808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (443439360).

406822808 is an abundant number, since it is smaller than the sum of its proper divisors (480055912).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

406822808 is a wasteful number, since it uses less digits than its factorization.

406822808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648 (or 644 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 38.

The square root of 406822808 is about 20169.8489830737. The cubic root of 406822808 is about 740.9719441820.

The spelling of 406822808 in words is "four hundred six million, eight hundred twenty-two thousand, eight hundred eight".