4421040 has 120 divisors (see below), whose sum is σ = 14976720. Its totient is φ = 1078272.

The previous prime is 4421033. The next prime is 4421041. The reversal of 4421040 is 401244.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4421041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40506 + ... + 40614.

It is an arithmetic number, because the mean of its divisors is an integer number (124806).

Almost surely, 2^4421040 is an apocalyptic number.

4421040 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 4421040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7488360).

4421040 is an abundant number, since it is smaller than the sum of its proper divisors (10555680).

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

4421040 is a wasteful number, since it uses less digits than its factorization.

4421040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151 (or 132 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 4421040 is about 2102.6269283922. The cubic root of 4421040 is about 164.1250285920.

Adding to 4421040 its reverse (401244), we get a palindrome (4822284).

The spelling of 4421040 in words is "four million, four hundred twenty-one thousand, forty".