4442424 has 64 divisors (see below), whose sum is σ = 13117440. Its totient is φ = 1226880.

The previous prime is 4442413. The next prime is 4442429. The reversal of 4442424 is 4242444.

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

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 4442394 and 4442403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4442429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4782 + ... + 5634.

It is an arithmetic number, because the mean of its divisors is an integer number (204960).

Almost surely, 2^4442424 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 4442424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6558720).

4442424 is an abundant number, since it is smaller than the sum of its proper divisors (8675016).

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

4442424 is a wasteful number, since it uses less digits than its factorization.

4442424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900 (or 896 counting only the distinct ones).

The product of its digits is 4096, while the sum is 24.

The square root of 4442424 is about 2107.7058618318. The cubic root of 4442424 is about 164.3892202900.

Adding to 4442424 its reverse (4242444), we get a palindrome (8684868).

The spelling of 4442424 in words is "four million, four hundred forty-two thousand, four hundred twenty-four".