444020535 has 192 divisors, whose sum is σ = 1003871232. Its totient is φ = 183638016.

The previous prime is 444020513. The next prime is 444020539. The reversal of 444020535 is 535020444.

It is not a de Polignac number, because 444020535 - 2⁵ = 444020503 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 444020499 and 444020508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444020539) 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 191 ways as a sum of consecutive naturals, for example, 5349604 + ... + 5349686.

It is an arithmetic number, because the mean of its divisors is an integer number (5228496).

Almost surely, 2^444020535 is an apocalyptic number.

444020535 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

444020535 is an abundant number, since it is smaller than the sum of its proper divisors (559850697).

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

444020535 is a wasteful number, since it uses less digits than its factorization.

444020535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164 (or 152 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 444020535 is about 21071.7947740576. The cubic root of 444020535 is about 762.9001235996.

Adding to 444020535 its reverse (535020444), we get a palindrome (979040979).

Subtracting 444020535 from its reverse (535020444), we obtain a palindrome (90999909).

The spelling of 444020535 in words is "four hundred forty-four million, twenty thousand, five hundred thirty-five".