40004040444 has 24 divisors (see below), whose sum is σ = 93882319440. Its totient is φ = 13257600384.

The previous prime is 40004040413. The next prime is 40004040451. The reversal of 40004040444 is 44404040004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9632809 + ... + 9636960.

It is an arithmetic number, because the mean of its divisors is an integer number (3911763310).

Almost surely, 2^40004040444 is an apocalyptic number.

It is an amenable number.

40004040444 is an abundant number, since it is smaller than the sum of its proper divisors (53878278996).

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

40004040444 is a wasteful number, since it uses less digits than its factorization.

40004040444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19269949 (or 19269947 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 40004040444 its reverse (44404040004), we get a palindrome (84408080448).

The spelling of 40004040444 in words is "forty billion, four million, forty thousand, four hundred forty-four".