444431221002 has 48 divisors (see below), whose sum is σ = 991071536832. Its totient is φ = 143877222720.

The previous prime is 444431220997. The next prime is 444431221027. The reversal of 444431221002 is 200122134444.

444431221002 is a `hidden beast` number, since 4 + 4 + 4 + 431 + 221 + 0 + 0 + 2 = 666.

It is a super-2 number, since 2×444431221002² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 2509563 + ... + 2680814.

It is an arithmetic number, because the mean of its divisors is an integer number (20647323684).

Almost surely, 2^444431221002 is an apocalyptic number.

444431221002 is an abundant number, since it is smaller than the sum of its proper divisors (546640315830).

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

444431221002 is a wasteful number, since it uses less digits than its factorization.

444431221002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5190523 (or 5190520 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 444431221002 its reverse (200122134444), we get a palindrome (644553355446).

The spelling of 444431221002 in words is "four hundred forty-four billion, four hundred thirty-one million, two hundred twenty-one thousand, two".