40036400004 has 12 divisors (see below), whose sum is σ = 93418266704. Its totient is φ = 13345466664.

The previous prime is 40036399913. The next prime is 40036400021. The reversal of 40036400004 is 40000463004.

40036400004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-4 number, since 4×40036400004⁴ (a number of 44 digits) contains 4444 as substring.

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, 1668183322 + ... + 1668183345.

Almost surely, 2^40036400004 is an apocalyptic number.

It is an amenable number.

40036400004 is an abundant number, since it is smaller than the sum of its proper divisors (53381866700).

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

40036400004 is a wasteful number, since it uses less digits than its factorization.

40036400004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3336366674 (or 3336366672 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 40036400004 its reverse (40000463004), we get a palindrome (80036863008).

Subtracting from 40036400004 its reverse (40000463004), we obtain a cube (35937000 = 330³).

The spelling of 40036400004 in words is "forty billion, thirty-six million, four hundred thousand, four".