40421324004 has 12 divisors (see below), whose sum is σ = 94316422704. Its totient is φ = 13473774664.

The previous prime is 40421324003. The next prime is 40421324093. The reversal of 40421324004 is 40042312404.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (40421324003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1684221822 + ... + 1684221845.

It is an arithmetic number, because the mean of its divisors is an integer number (7859701892).

Almost surely, 2^40421324004 is an apocalyptic number.

It is an amenable number.

40421324004 is an abundant number, since it is smaller than the sum of its proper divisors (53895098700).

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

40421324004 is a wasteful number, since it uses less digits than its factorization.

40421324004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3368443674 (or 3368443672 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 40421324004 its reverse (40042312404), we get a palindrome (80463636408).

The spelling of 40421324004 in words is "forty billion, four hundred twenty-one million, three hundred twenty-four thousand, four".