404003444 has 48 divisors (see below), whose sum is σ = 795446400. Its totient is φ = 178298496.

The previous prime is 404003417. The next prime is 404003459. The reversal of 404003444 is 444300404.

It is a super-2 number, since 2×404003444² = 326437565527722272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111737 + ... + 115295.

It is an arithmetic number, because the mean of its divisors is an integer number (16571800).

Almost surely, 2^404003444 is an apocalyptic number.

It is an amenable number.

404003444 is a deficient number, since it is larger than the sum of its proper divisors (391442956).

404003444 is a wasteful number, since it uses less digits than its factorization.

404003444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3672 (or 3670 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 404003444 is about 20099.8369147613. The cubic root of 404003444 is about 739.2562798184.

Adding to 404003444 its reverse (444300404), we get a palindrome (848303848).

The spelling of 404003444 in words is "four hundred four million, three thousand, four hundred forty-four".