40055304449 has 4 divisors (see below), whose sum is σ = 40078744020. Its totient is φ = 40031864880.

The previous prime is 40055304439. The next prime is 40055304479. The reversal of 40055304449 is 94440355004.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19104768400 + 20950536049 = 138220^2 + 144743^2 .

It is a cyclic number.

It is not a de Polignac number, because 40055304449 - 2¹⁶ = 40055238913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40055304439) 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 3 ways as a sum of consecutive naturals, for example, 11717222 + ... + 11720639.

It is an arithmetic number, because the mean of its divisors is an integer number (10019686005).

Almost surely, 2^40055304449 is an apocalyptic number.

It is an amenable number.

40055304449 is a deficient number, since it is larger than the sum of its proper divisors (23439571).

40055304449 is a wasteful number, since it uses less digits than its factorization.

40055304449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23439570.

The product of its (nonzero) digits is 172800, while the sum is 38.

The spelling of 40055304449 in words is "forty billion, fifty-five million, three hundred four thousand, four hundred forty-nine".