44004444431 has 2 divisors, whose sum is σ = 44004444432. Its totient is φ = 44004444430.

The previous prime is 44004444413. The next prime is 44004444437. The reversal of 44004444431 is 13444440044.

Together with previous prime (44004444413) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44004444431 is a prime.

It is a super-2 number, since 2×44004444431² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44004444437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22002222215 + 22002222216.

It is an arithmetic number, because the mean of its divisors is an integer number (22002222216).

Almost surely, 2^44004444431 is an apocalyptic number.

44004444431 is a deficient number, since it is larger than the sum of its proper divisors (1).

44004444431 is an equidigital number, since it uses as much as digits as its factorization.

44004444431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 49152, while the sum is 32.

Adding to 44004444431 its reverse (13444440044), we get a palindrome (57448884475).

The spelling of 44004444431 in words is "forty-four billion, four million, four hundred forty-four thousand, four hundred thirty-one".