40044244400 has 60 divisors (see below), whose sum is σ = 98253285792. Its totient is φ = 15676888320.

The previous prime is 40044244399. The next prime is 40044244417. The reversal of 40044244400 is 444244004.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 40044244400.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1046207 + ... + 1083806.

Almost surely, 2^40044244400 is an apocalyptic number.

40044244400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40044244400 is an abundant number, since it is smaller than the sum of its proper divisors (58209041392).

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

40044244400 is a wasteful number, since it uses less digits than its factorization.

40044244400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2130078 (or 2130067 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 40044244400 its reverse (444244004), we get a palindrome (40488488404).

The spelling of 40044244400 in words is "forty billion, forty-four million, two hundred forty-four thousand, four hundred".