40020004040004 has 24 divisors (see below), whose sum is σ = 103755566029920. Its totient is φ = 13340001346632.

The previous prime is 40020004039943. The next prime is 40020004040047. The reversal of 40020004040004 is 40004040002004.

It is a happy number.

40020004040004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185277796374 + ... + 185277796589.

It is an arithmetic number, because the mean of its divisors is an integer number (4323148584580).

Almost surely, 2^{40020004040004} is an apocalyptic number.

It is an amenable number.

40020004040004 is an abundant number, since it is smaller than the sum of its proper divisors (63735561989916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40020004040004 is a wasteful number, since it uses less digits than its factorization.

40020004040004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370555592976 (or 370555592968 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

Adding to 40020004040004 its reverse (40004040002004), we get a palindrome (80024044042008).

The spelling of 40020004040004 in words is "forty trillion, twenty billion, four million, forty thousand, four".