4000440220444 has 24 divisors (see below), whose sum is σ = 7227976484736. Its totient is φ = 1935328632000.

The previous prime is 4000440220433. The next prime is 4000440220487. The reversal of 4000440220444 is 4440220440004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2413747 + ... + 3718474.

It is an arithmetic number, because the mean of its divisors is an integer number (301165686864).

Almost surely, 2^{4000440220444} is an apocalyptic number.

It is an amenable number.

4000440220444 is a deficient number, since it is larger than the sum of its proper divisors (3227536264292).

4000440220444 is a wasteful number, since it uses less digits than its factorization.

4000440220444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6137517 (or 6137515 counting only the distinct ones).

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

Adding to 4000440220444 its reverse (4440220440004), we get a palindrome (8440660660448).

The spelling of 4000440220444 in words is "four trillion, four hundred forty million, two hundred twenty thousand, four hundred forty-four".