4424440 has 32 divisors (see below), whose sum is σ = 10147680. Its totient is φ = 1735552.

The previous prime is 4424429. The next prime is 4424447. The reversal of 4424440 is 444244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4424447) 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, 1077 + ... + 3163.

It is an arithmetic number, because the mean of its divisors is an integer number (317115).

Almost surely, 2^4424440 is an apocalyptic number.

4424440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4424440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5073840).

4424440 is an abundant number, since it is smaller than the sum of its proper divisors (5723240).

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

4424440 is a wasteful number, since it uses less digits than its factorization.

4424440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2151 (or 2147 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

The square root of 4424440 is about 2103.4352854319. The cubic root of 4424440 is about 164.1670912521.

Adding to 4424440 its reverse (444244), we get a palindrome (4868684).

The spelling of 4424440 in words is "four million, four hundred twenty-four thousand, four hundred forty".