40444440043 has 4 divisors (see below), whose sum is σ = 46222217200. Its totient is φ = 34666662888.

The previous prime is 40444440031. The next prime is 40444440089. The reversal of 40444440043 is 34004444404.

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

It is a cyclic number.

It is not a de Polignac number, because 40444440043 - 2³³ = 31854505451 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40444439987 and 40444440014.

It is not an unprimeable number, because it can be changed into a prime (40444440013) 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, 2888888568 + ... + 2888888581.

It is an arithmetic number, because the mean of its divisors is an integer number (11555554300).

Almost surely, 2^40444440043 is an apocalyptic number.

40444440043 is a deficient number, since it is larger than the sum of its proper divisors (5777777157).

40444440043 is an equidigital number, since it uses as much as digits as its factorization.

40444440043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5777777156.

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

Adding to 40444440043 its reverse (34004444404), we get a palindrome (74448884447).

The spelling of 40444440043 in words is "forty billion, four hundred forty-four million, four hundred forty thousand, forty-three".