4000444 has 12 divisors (see below), whose sum is σ = 8000944. Its totient is φ = 1714464.

The previous prime is 4000439. The next prime is 4000489. The reversal of 4000444 is 4440004.

4000444 is an admirable number.

4000444 is a modest number, since divided by 444 gives 4 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71409 + ... + 71464.

Almost surely, 2^4000444 is an apocalyptic number.

It is an amenable number.

4000444 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

4000444 is a wasteful number, since it uses less digits than its factorization.

4000444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142884 (or 142882 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 4000444 is about 2000.1109969199. The cubic root of 4000444 is about 158.7459783634.

Adding to 4000444 its reverse (4440004), we get a palindrome (8440448).

It can be divided in two parts, 4000 and 444, that added together give a palindrome (4444).

The spelling of 4000444 in words is "four million, four hundred forty-four", and thus it is an aban number.