4021444444 has 6 divisors (see below), whose sum is σ = 7037527784. Its totient is φ = 2010722220.

The previous prime is 4021444439. The next prime is 4021444457. The reversal of 4021444444 is 4444441204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502680552 + ... + 502680559.

Almost surely, 2^4021444444 is an apocalyptic number.

It is an amenable number.

4021444444 is a deficient number, since it is larger than the sum of its proper divisors (3016083340).

4021444444 is a wasteful number, since it uses less digits than its factorization.

4021444444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1005361115 (or 1005361113 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 31.

The square root of 4021444444 is about 63414.8598043077. The cubic root of 4021444444 is about 1590.2327420595.

Adding to 4021444444 its reverse (4444441204), we get a palindrome (8465885648).

The spelling of 4021444444 in words is "four billion, twenty-one million, four hundred forty-four thousand, four hundred forty-four".