4404420 has 36 divisors (see below), whose sum is σ = 13360620. Its totient is φ = 1174464.

The previous prime is 4404419. The next prime is 4404427. The reversal of 4404420 is 244044.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1077444 + 3326976 = 1038^2 + 1824^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 4404393 and 4404402.

It is not an unprimeable number, because it can be changed into a prime (4404427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12055 + ... + 12414.

Almost surely, 2^4404420 is an apocalyptic number.

It is an amenable number.

4404420 is an abundant number, since it is smaller than the sum of its proper divisors (8956200).

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

4404420 is a wasteful number, since it uses less digits than its factorization.

4404420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24484 (or 24479 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 4404420 is about 2098.6710080429. The cubic root of 4404420 is about 163.9191054546.

Adding to 4404420 its reverse (244044), we get a palindrome (4648464).

The spelling of 4404420 in words is "four million, four hundred four thousand, four hundred twenty".