444220042 has 8 divisors (see below), whose sum is σ = 761520096. Its totient is φ = 190380012.

The previous prime is 444220003. The next prime is 444220043. The reversal of 444220042 is 240022444.

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 = 444219995 and 444220022.

It is not an unprimeable number, because it can be changed into a prime (444220043) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 15864988 + ... + 15865015.

It is an arithmetic number, because the mean of its divisors is an integer number (95190012).

Almost surely, 2^444220042 is an apocalyptic number.

444220042 is a deficient number, since it is larger than the sum of its proper divisors (317300054).

444220042 is a wasteful number, since it uses less digits than its factorization.

444220042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31730012.

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

The square root of 444220042 is about 21076.5282245440. The cubic root of 444220042 is about 763.0143684093.

Adding to 444220042 its reverse (240022444), we get a palindrome (684242486).

The spelling of 444220042 in words is "four hundred forty-four million, two hundred twenty thousand, forty-two".