409969808 has 20 divisors (see below), whose sum is σ = 796139520. Its totient is φ = 204514464.

The previous prime is 409969801. The next prime is 409969829. The reversal of 409969808 is 808969904.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 409969808.

It is not an unprimeable number, because it can be changed into a prime (409969801) 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 3 ways as a sum of consecutive naturals, for example, 22160 + ... + 36207.

It is an arithmetic number, because the mean of its divisors is an integer number (39806976).

Almost surely, 2^409969808 is an apocalyptic number.

It is an amenable number.

409969808 is a deficient number, since it is larger than the sum of its proper divisors (386169712).

409969808 is a wasteful number, since it uses less digits than its factorization.

409969808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58814 (or 58808 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 53.

The square root of 409969808 is about 20247.7111792914. The cubic root of 409969808 is about 742.8776483210.

The spelling of 409969808 in words is "four hundred nine million, nine hundred sixty-nine thousand, eight hundred eight".