40044895369 has 6 divisors (see below), whose sum is σ = 41473370510. Its totient is φ = 38664036096.

The previous prime is 40044895337. The next prime is 40044895409. The reversal of 40044895369 is 96359844004.

It can be written as a sum of positive squares in 3 ways, for example, as 585059344 + 39459836025 = 24188^2 + 198645^2 .

It is not a de Polignac number, because 40044895369 - 2⁵ = 40044895337 is a prime.

It is a super-2 number, since 2×40044895369² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40044895069) 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 5 ways as a sum of consecutive naturals, for example, 23807064 + ... + 23808745.

Almost surely, 2^40044895369 is an apocalyptic number.

It is an amenable number.

40044895369 is a deficient number, since it is larger than the sum of its proper divisors (1428475141).

40044895369 is an equidigital number, since it uses as much as digits as its factorization.

40044895369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47615867 (or 47615838 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 52.

The spelling of 40044895369 in words is "forty billion, forty-four million, eight hundred ninety-five thousand, three hundred sixty-nine".