4144420 has 36 divisors (see below), whose sum is σ = 10126620. Its totient is φ = 1420608.

The previous prime is 4144409. The next prime is 4144423. The reversal of 4144420 is 244414.

It can be written as a sum of positive squares in 2 ways, for example, as 3211264 + 933156 = 1792^2 + 966^2 .

It is not an unprimeable number, because it can be changed into a prime (4144423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1135 + ... + 3094.

It is an arithmetic number, because the mean of its divisors is an integer number (281295).

Almost surely, 2^4144420 is an apocalyptic number.

It is an amenable number.

4144420 is an abundant number, since it is smaller than the sum of its proper divisors (5982200).

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

4144420 is a wasteful number, since it uses less digits than its factorization.

4144420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4252 (or 4243 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 4144420 is about 2035.7848609320. The cubic root of 4144420 is about 160.6280006202.

Adding to 4144420 its reverse (244414), we get a palindrome (4388834).

The spelling of 4144420 in words is "four million, one hundred forty-four thousand, four hundred twenty".