2000004444 has 18 divisors (see below), whose sum is σ = 5055566880. Its totient is φ = 666668136.

The previous prime is 2000004443. The next prime is 2000004473. The reversal of 2000004444 is 4444000002.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

2000004444 is a modest number, since divided by 4444 gives 20 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000004443) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27777804 + ... + 27777875.

Almost surely, 2^2000004444 is an apocalyptic number.

It is an amenable number.

2000004444 is an abundant number, since it is smaller than the sum of its proper divisors (3055562436).

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

2000004444 is a wasteful number, since it uses less digits than its factorization.

2000004444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55555689 (or 55555684 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 2000004444 is about 44721.4092353987. The cubic root of 2000004444 is about 1259.9219830757.

Adding to 2000004444 its reverse (4444000002), we get a palindrome (6444004446).

The spelling of 2000004444 in words is "two billion, four thousand, four hundred forty-four".