4042444420 has 24 divisors (see below), whose sum is σ = 9701866944. Its totient is φ = 1385980896.

The previous prime is 4042444403. The next prime is 4042444429. The reversal of 4042444420 is 244442404.

4042444420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (4042444429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14437162 + ... + 14437441.

It is an arithmetic number, because the mean of its divisors is an integer number (404244456).

Almost surely, 2^4042444420 is an apocalyptic number.

It is an amenable number.

4042444420 is an abundant number, since it is smaller than the sum of its proper divisors (5659422524).

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

4042444420 is a wasteful number, since it uses less digits than its factorization.

4042444420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28874619 (or 28874617 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

The square root of 4042444420 is about 63580.2203519302. The cubic root of 4042444420 is about 1592.9960019324.

Adding to 4042444420 its reverse (244442404), we get a palindrome (4286886824).

The spelling of 4042444420 in words is "four billion, forty-two million, four hundred forty-four thousand, four hundred twenty".