40044444449 has 4 divisors (see below), whose sum is σ = 40046136900. Its totient is φ = 40042752000.

The previous prime is 40044444437. The next prime is 40044444523. The reversal of 40044444449 is 94444444004.

40044444449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 16380160225 + 23664284224 = 127985^2 + 153832^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40044444449 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40044441449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 810224 + ... + 858225.

It is an arithmetic number, because the mean of its divisors is an integer number (10011534225).

Almost surely, 2^40044444449 is an apocalyptic number.

It is an amenable number.

40044444449 is a deficient number, since it is larger than the sum of its proper divisors (1692451).

40044444449 is a wasteful number, since it uses less digits than its factorization.

40044444449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1692450.

The product of its (nonzero) digits is 589824, while the sum is 41.

The spelling of 40044444449 in words is "forty billion, forty-four million, four hundred forty-four thousand, four hundred forty-nine".