4220444042 has 8 divisors (see below), whose sum is σ = 6331919556. Its totient is φ = 2109804192.

The previous prime is 4220444003. The next prime is 4220444047. The reversal of 4220444042 is 2404440224.

It can be written as a sum of positive squares in 2 ways, for example, as 3963835681 + 256608361 = 62959^2 + 16019^2 .

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

It is not an unprimeable number, because it can be changed into a prime (4220444047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196133 + ... + 216584.

Almost surely, 2^4220444042 is an apocalyptic number.

4220444042 is a deficient number, since it is larger than the sum of its proper divisors (2111475514).

4220444042 is a wasteful number, since it uses less digits than its factorization.

4220444042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417832.

The product of its (nonzero) digits is 8192, while the sum is 26.

The square root of 4220444042 is about 64964.9447163622. The cubic root of 4220444042 is about 1616.0422672689.

Adding to 4220444042 its reverse (2404440224), we get a palindrome (6624884266).

The spelling of 4220444042 in words is "four billion, two hundred twenty million, four hundred forty-four thousand, forty-two".