444128895 has 72 divisors (see below), whose sum is σ = 942729840. Its totient is φ = 192326400.

The previous prime is 444128869. The next prime is 444128899. The reversal of 444128895 is 598821444.

444128895 is a `hidden beast` number, since 444 + 128 + 89 + 5 = 666.

It is not a de Polignac number, because 444128895 - 2¹⁴ = 444112511 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 444128895.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444128899) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 36595 + ... + 47195.

It is an arithmetic number, because the mean of its divisors is an integer number (13093470).

Almost surely, 2^444128895 is an apocalyptic number.

444128895 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

444128895 is an abundant number, since it is smaller than the sum of its proper divisors (498600945).

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

444128895 is a wasteful number, since it uses less digits than its factorization.

444128895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10645 (or 10635 counting only the distinct ones).

The product of its digits is 368640, while the sum is 45.

The square root of 444128895 is about 21074.3658267574. The cubic root of 444128895 is about 762.9621786376.

The spelling of 444128895 in words is "four hundred forty-four million, one hundred twenty-eight thousand, eight hundred ninety-five".