40816808 has 16 divisors (see below), whose sum is σ = 77787060. Its totient is φ = 20073600.

The previous prime is 40816759. The next prime is 40816817. The reversal of 40816808 is 80861804.

It can be written as a sum of positive squares in 2 ways, for example, as 24186724 + 16630084 = 4918^2 + 4078^2 .

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41333 + ... + 42308.

Almost surely, 2^40816808 is an apocalyptic number.

It is an amenable number.

40816808 is a deficient number, since it is larger than the sum of its proper divisors (36970252).

40816808 is a wasteful number, since it uses less digits than its factorization.

40816808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83708 (or 83704 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 35.

The square root of 40816808 is about 6388.8033308281. The cubic root of 40816808 is about 344.3073915453.

The spelling of 40816808 in words is "forty million, eight hundred sixteen thousand, eight hundred eight".