448444440045 has 64 divisors (see below), whose sum is σ = 919971287040. Its totient is φ = 203012806464.

The previous prime is 448444440023. The next prime is 448444440071. The reversal of 448444440045 is 540044444844.

It is not a de Polignac number, because 448444440045 - 2⁵ = 448444440013 is a prime.

It is a super-2 number, since 2×448444440045² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2206279 + ... + 2400948.

It is an arithmetic number, because the mean of its divisors is an integer number (14374551360).

Almost surely, 2^448444440045 is an apocalyptic number.

448444440045 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

448444440045 is an abundant number, since it is smaller than the sum of its proper divisors (471526846995).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

448444440045 is a wasteful number, since it uses less digits than its factorization.

448444440045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4607351 (or 4607345 counting only the distinct ones).

The product of its (nonzero) digits is 2621440, while the sum is 45.

Adding to 448444440045 its reverse (540044444844), we get a palindrome (988488884889).

The spelling of 448444440045 in words is "four hundred forty-eight billion, four hundred forty-four million, four hundred forty thousand, forty-five".