40040040104 has 16 divisors (see below), whose sum is σ = 76906175220. Its totient is φ = 19531726720.

The previous prime is 40040040101. The next prime is 40040040121. The reversal of 40040040104 is 40104004004.

It can be written as a sum of positive squares in 2 ways, for example, as 28256937604 + 11783102500 = 168098^2 + 108550^2 .

It is not an unprimeable number, because it can be changed into a prime (40040040101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61036319 + ... + 61036974.

Almost surely, 2^40040040104 is an apocalyptic number.

It is an amenable number.

40040040104 is a deficient number, since it is larger than the sum of its proper divisors (36866135116).

40040040104 is a wasteful number, since it uses less digits than its factorization.

40040040104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122073340 (or 122073336 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 40040040104 its reverse (40104004004), we get a palindrome (80144044108).

The spelling of 40040040104 in words is "forty billion, forty million, forty thousand, one hundred four".