40008040808 has 8 divisors (see below), whose sum is σ = 75015076530. Its totient is φ = 20004020400.

The previous prime is 40008040741. The next prime is 40008040823. The reversal of 40008040808 is 80804080004.

It can be written as a sum of positive squares in only one way, i.e., 37543712644 + 2464328164 = 193762^2 + 49642^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 2500502543 + ... + 2500502558.

Almost surely, 2^40008040808 is an apocalyptic number.

It is an amenable number.

40008040808 is a deficient number, since it is larger than the sum of its proper divisors (35007035722).

40008040808 is a wasteful number, since it uses less digits than its factorization.

40008040808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5001005107 (or 5001005103 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 32.

The spelling of 40008040808 in words is "forty billion, eight million, forty thousand, eight hundred eight".