444140322 has 32 divisors (see below), whose sum is σ = 905333760. Its totient is φ = 145226880.

The previous prime is 444140297. The next prime is 444140357. The reversal of 444140322 is 223041444.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 444140292 and 444140301.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81004 + ... + 86312.

It is an arithmetic number, because the mean of its divisors is an integer number (28291680).

Almost surely, 2^444140322 is an apocalyptic number.

444140322 is an abundant number, since it is smaller than the sum of its proper divisors (461193438).

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

444140322 is a wasteful number, since it uses less digits than its factorization.

444140322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5578.

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 444140322 is about 21074.6369363745. The cubic root of 444140322 is about 762.9687220038.

Adding to 444140322 its reverse (223041444), we get a palindrome (667181766).

The spelling of 444140322 in words is "four hundred forty-four million, one hundred forty thousand, three hundred twenty-two".