4042444220 has 24 divisors (see below), whose sum is σ = 8596593600. Its totient is φ = 1596508992.

The previous prime is 4042444187. The next prime is 4042444247. The reversal of 4042444220 is 224442404.

It is a super-2 number, since 2×4042444220² = 32682710543622816800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4042444220.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1277675 + ... + 1280834.

It is an arithmetic number, because the mean of its divisors is an integer number (358191400).

Almost surely, 2^4042444220 is an apocalyptic number.

It is an amenable number.

4042444220 is an abundant number, since it is smaller than the sum of its proper divisors (4554149380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4042444220 is a wasteful number, since it uses less digits than its factorization.

4042444220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2558597 (or 2558595 counting only the distinct ones).

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

The square root of 4042444220 is about 63580.2187791140. The cubic root of 4042444220 is about 1592.9959756613.

Adding to 4042444220 its reverse (224442404), we get a palindrome (4266886624).

The spelling of 4042444220 in words is "four billion, forty-two million, four hundred forty-four thousand, two hundred twenty".