444002422 has 8 divisors (see below), whose sum is σ = 666760536. Its totient is φ = 221748912.

The previous prime is 444002417. The next prime is 444002443. The reversal of 444002422 is 224200444.

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

It is a junction number, because it is equal to n+sod(n) for n = 444002393 and 444002402.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 123943 + ... + 127474.

It is an arithmetic number, because the mean of its divisors is an integer number (83345067).

Almost surely, 2^444002422 is an apocalyptic number.

444002422 is a deficient number, since it is larger than the sum of its proper divisors (222758114).

444002422 is a wasteful number, since it uses less digits than its factorization.

444002422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252302.

The product of its (nonzero) digits is 2048, while the sum is 22.

The square root of 444002422 is about 21071.3649771437. The cubic root of 444002422 is about 762.8897497567.

Adding to 444002422 its reverse (224200444), we get a palindrome (668202866).

The spelling of 444002422 in words is "four hundred forty-four million, two thousand, four hundred twenty-two".