4390044 has 12 divisors (see below), whose sum is σ = 10243464. Its totient is φ = 1463344.

The previous prime is 4390039. The next prime is 4390051. The reversal of 4390044 is 4400934.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 4389996 and 4390023.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182907 + ... + 182930.

It is an arithmetic number, because the mean of its divisors is an integer number (853622).

Almost surely, 2^4390044 is an apocalyptic number.

It is an amenable number.

4390044 is an abundant number, since it is smaller than the sum of its proper divisors (5853420).

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

4390044 is a wasteful number, since it uses less digits than its factorization.

4390044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365844 (or 365842 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 4390044 is about 2095.2431839765. The cubic root of 4390044 is about 163.7405674111.

Adding to 4390044 its reverse (4400934), we get a palindrome (8790978).

The spelling of 4390044 in words is "four million, three hundred ninety thousand, forty-four".