40036404004 has 12 divisors (see below), whose sum is σ = 70850940300. Its totient is φ = 19793278208.

The previous prime is 40036403987. The next prime is 40036404029. The reversal of 40036404004 is 40040463004.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3037112100 + 36999291904 = 55110^2 + 192352^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 40036404004.

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, 56230549 + ... + 56231260.

It is an arithmetic number, because the mean of its divisors is an integer number (5904245025).

Almost surely, 2^40036404004 is an apocalyptic number.

It is an amenable number.

40036404004 is a deficient number, since it is larger than the sum of its proper divisors (30814536296).

40036404004 is a wasteful number, since it uses less digits than its factorization.

40036404004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112461902 (or 112461900 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 40036404004 its reverse (40040463004), we get a palindrome (80076867008).

The spelling of 40036404004 in words is "forty billion, thirty-six million, four hundred four thousand, four".