440424039991 has 16 divisors (see below), whose sum is σ = 488681786880. Its totient is φ = 394392810240.

The previous prime is 440424039949. The next prime is 440424039997. The reversal of 440424039991 is 199930424044.

It is not a de Polignac number, because 440424039991 - 2⁷ = 440424039863 is a prime.

It is a super-3 number, since 3×440424039991³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440424039997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3529815 + ... + 3652456.

It is an arithmetic number, because the mean of its divisors is an integer number (30542611680).

Almost surely, 2^440424039991 is an apocalyptic number.

440424039991 is a deficient number, since it is larger than the sum of its proper divisors (48257746889).

440424039991 is a wasteful number, since it uses less digits than its factorization.

440424039991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7182426.

The product of its (nonzero) digits is 1119744, while the sum is 49.

The spelling of 440424039991 in words is "four hundred forty billion, four hundred twenty-four million, thirty-nine thousand, nine hundred ninety-one".