40404404443 has 8 divisors (see below), whose sum is σ = 43674195600. Its totient is φ = 37157721888.

The previous prime is 40404404431. The next prime is 40404404477. The reversal of 40404404443 is 34440440404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40404404443 is a prime.

It is a super-3 number, since 3×40404404443³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40404404423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5773513 + ... + 5780506.

It is an arithmetic number, because the mean of its divisors is an integer number (5459274450).

Almost surely, 2^40404404443 is an apocalyptic number.

40404404443 is a deficient number, since it is larger than the sum of its proper divisors (3269791157).

40404404443 is a wasteful number, since it uses less digits than its factorization.

40404404443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11554301.

The product of its (nonzero) digits is 49152, while the sum is 31.

Adding to 40404404443 its reverse (34440440404), we get a palindrome (74844844847).

The spelling of 40404404443 in words is "forty billion, four hundred four million, four hundred four thousand, four hundred forty-three".