40684808 has 32 divisors (see below), whose sum is σ = 81126360. Its totient is φ = 19061760.

The previous prime is 40684799. The next prime is 40684811. The reversal of 40684808 is 80848604.

It can be written as a sum of positive squares in 4 ways, for example, as 40475044 + 209764 = 6362^2 + 458^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39338 + ... + 40358.

Almost surely, 2^40684808 is an apocalyptic number.

It is an amenable number.

40684808 is a deficient number, since it is larger than the sum of its proper divisors (40441552).

40684808 is a wasteful number, since it uses less digits than its factorization.

40684808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1337 (or 1333 counting only the distinct ones).

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

The square root of 40684808 is about 6378.4643919991. The cubic root of 40684808 is about 343.9358317304.

The spelling of 40684808 in words is "forty million, six hundred eighty-four thousand, eight hundred eight".