4444422442 has 4 divisors (see below), whose sum is σ = 6666633666. Its totient is φ = 2222211220.

The previous prime is 4444422407. The next prime is 4444422461. The reversal of 4444422442 is 2442244444.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4391845441 + 52577001 = 66271^2 + 7251^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4444422398 and 4444422407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1111105609 + ... + 1111105612.

Almost surely, 2^4444422442 is an apocalyptic number.

4444422442 is a deficient number, since it is larger than the sum of its proper divisors (2222211224).

4444422442 is a wasteful number, since it uses less digits than its factorization.

4444422442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2222211223.

The product of its digits is 131072, while the sum is 34.

The square root of 4444422442 is about 66666.5016481291. The cubic root of 4444422442 is about 1644.1386697478.

Adding to 4444422442 its reverse (2442244444), we get a palindrome (6886666886).

The spelling of 4444422442 in words is "four billion, four hundred forty-four million, four hundred twenty-two thousand, four hundred forty-two".