4420404 has 18 divisors (see below), whose sum is σ = 11173890. Its totient is φ = 1473456.

The previous prime is 4420379. The next prime is 4420417. The reversal of 4420404 is 4040244.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 4410000 + 10404 = 2100^2 + 102^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-3 number, since 3×4420404³ (a number of 21 digits) contains 333 as substring.

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

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 61359 + ... + 61430.

Almost surely, 2^4420404 is an apocalyptic number.

It is an amenable number.

4420404 is an abundant number, since it is smaller than the sum of its proper divisors (6753486).

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

4420404 is a wasteful number, since it uses less digits than its factorization.

4420404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122799 (or 122794 counting only the distinct ones).

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

The square root of 4420404 is about 2102.4756835693. The cubic root of 4420404 is about 164.1171580062.

Adding to 4420404 its reverse (4040244), we get a palindrome (8460648).

The spelling of 4420404 in words is "four million, four hundred twenty thousand, four hundred four".