440899812005 has 4 divisors (see below), whose sum is σ = 529079774412. Its totient is φ = 352719849600.

The previous prime is 440899811999. The next prime is 440899812007. The reversal of 440899812005 is 500218998044.

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 247065661249 + 193834150756 = 497057^2 + 440266^2 .

It is not a de Polignac number, because 440899812005 - 2¹⁸ = 440899549861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440899812007) 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, 44089981196 + ... + 44089981205.

It is an arithmetic number, because the mean of its divisors is an integer number (132269943603).

Almost surely, 2^440899812005 is an apocalyptic number.

It is an amenable number.

440899812005 is a deficient number, since it is larger than the sum of its proper divisors (88179962407).

440899812005 is an equidigital number, since it uses as much as digits as its factorization.

440899812005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88179962406.

The product of its (nonzero) digits is 829440, while the sum is 50.

The spelling of 440899812005 in words is "four hundred forty billion, eight hundred ninety-nine million, eight hundred twelve thousand, five".