444405422 has 8 divisors (see below), whose sum is σ = 667040400. Its totient is φ = 222058624.

The previous prime is 444405419. The next prime is 444405427. The reversal of 444405422 is 224504444.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444405427) 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 3 ways as a sum of consecutive naturals, for example, 68147 + ... + 74382.

It is an arithmetic number, because the mean of its divisors is an integer number (83380050).

Almost surely, 2^444405422 is an apocalyptic number.

444405422 is a deficient number, since it is larger than the sum of its proper divisors (222634978).

444405422 is a wasteful number, since it uses less digits than its factorization.

444405422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144090.

The product of its (nonzero) digits is 20480, while the sum is 29.

The square root of 444405422 is about 21080.9255489412. The cubic root of 444405422 is about 763.1204929412.

Adding to 444405422 its reverse (224504444), we get a palindrome (668909866).

The spelling of 444405422 in words is "four hundred forty-four million, four hundred five thousand, four hundred twenty-two".