4442816 has 56 divisors (see below), whose sum is σ = 10338816. Its totient is φ = 1854720.

The previous prime is 4442807. The next prime is 4442819. The reversal of 4442816 is 6182444.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×4442816² = 39477228019712, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4442819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20951 + ... + 21161.

Almost surely, 2^4442816 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 4442816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5169408).

4442816 is an abundant number, since it is smaller than the sum of its proper divisors (5896000).

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

4442816 is a wasteful number, since it uses less digits than its factorization.

4442816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277 (or 267 counting only the distinct ones).

The product of its digits is 6144, while the sum is 29.

The square root of 4442816 is about 2107.7988518832. The cubic root of 4442816 is about 164.3940553890.

It can be divided in two parts, 44428 and 16, that added together give a palindrome (44444).

The spelling of 4442816 in words is "four million, four hundred forty-two thousand, eight hundred sixteen".