4442004 has 36 divisors (see below), whose sum is σ = 12833184. Its totient is φ = 1269072.

The previous prime is 4442003. The next prime is 4442027. The reversal of 4442004 is 4002444.

It is a happy number.

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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (4442003) 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 11 ways as a sum of consecutive naturals, for example, 8562 + ... + 9065.

Almost surely, 2^4442004 is an apocalyptic number.

It is an amenable number.

4442004 is an abundant number, since it is smaller than the sum of its proper divisors (8391180).

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

4442004 is a wasteful number, since it uses less digits than its factorization.

4442004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17644 (or 17639 counting only the distinct ones).

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

The square root of 4442004 is about 2107.6062250810. The cubic root of 4442004 is about 164.3840395112.

Adding to 4442004 its reverse (4002444), we get a palindrome (8444448).

The spelling of 4442004 in words is "four million, four hundred forty-two thousand, four".