444263435420 has 96 divisors (see below), whose sum is σ = 1178036794368. Its totient is φ = 137125942272.

The previous prime is 444263435401. The next prime is 444263435423. The reversal of 444263435420 is 24534362444.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444263435423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4003202 + ... + 4112681.

It is an arithmetic number, because the mean of its divisors is an integer number (12271216608).

Almost surely, 2^444263435420 is an apocalyptic number.

It is an amenable number.

444263435420 is an abundant number, since it is smaller than the sum of its proper divisors (733773358948).

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

444263435420 is a wasteful number, since it uses less digits than its factorization.

444263435420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8115939 (or 8115937 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 41.

Adding to 444263435420 its reverse (24534362444), we get a palindrome (468797797864).

The spelling of 444263435420 in words is "four hundred forty-four billion, two hundred sixty-three million, four hundred thirty-five thousand, four hundred twenty".