40004444403 has 48 divisors (see below), whose sum is σ = 74449697280. Its totient is φ = 20781517680.

The previous prime is 40004444401. The next prime is 40004444443. The reversal of 40004444403 is 30444440004.

It is not a de Polignac number, because 40004444403 - 2¹ = 40004444401 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (40004444401) 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 47 ways as a sum of consecutive naturals, for example, 851775 + ... + 897512.

It is an arithmetic number, because the mean of its divisors is an integer number (1551035360).

Almost surely, 2^40004444403 is an apocalyptic number.

40004444403 is a deficient number, since it is larger than the sum of its proper divisors (34445252877).

40004444403 is a wasteful number, since it uses less digits than its factorization.

40004444403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1749325 (or 1749308 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 27.

Adding to 40004444403 its reverse (30444440004), we get a palindrome (70448884407).

The spelling of 40004444403 in words is "forty billion, four million, four hundred forty-four thousand, four hundred three".