4004444112 has 120 divisors (see below), whose sum is σ = 11080528896. Its totient is φ = 1245855744.

The previous prime is 4004444111. The next prime is 4004444137. The reversal of 4004444112 is 2114444004.

It is a happy number.

It is a super-2 number, since 2×4004444112² = 32071145292262937088, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4004444111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1760608 + ... + 1762880.

Almost surely, 2^4004444112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4004444112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5540264448).

4004444112 is an abundant number, since it is smaller than the sum of its proper divisors (7076084784).

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

4004444112 is a wasteful number, since it uses less digits than its factorization.

4004444112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2445 (or 2422 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 4004444112 is about 63280.6772403709. The cubic root of 4004444112 is about 1587.9887167232.

Adding to 4004444112 its reverse (2114444004), we get a palindrome (6118888116).

The spelling of 4004444112 in words is "four billion, four million, four hundred forty-four thousand, one hundred twelve".