40004443100 has 36 divisors (see below), whose sum is σ = 87620970024. Its totient is φ = 15852223680.

The previous prime is 40004443081. The next prime is 40004443109. The reversal of 40004443100 is 134440004.

It is a super-2 number, since 2×40004443100² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40004443109) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1858667 + ... + 1880066.

It is an arithmetic number, because the mean of its divisors is an integer number (2433915834).

Almost surely, 2^40004443100 is an apocalyptic number.

It is an amenable number.

40004443100 is an abundant number, since it is smaller than the sum of its proper divisors (47616526924).

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

40004443100 is a wasteful number, since it uses less digits than its factorization.

40004443100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3738854 (or 3738847 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 40004443100 its reverse (134440004), we get a palindrome (40138883104).

The spelling of 40004443100 in words is "forty billion, four million, four hundred forty-three thousand, one hundred".