544404 has 24 divisors (see below), whose sum is σ = 1451968. Its totient is φ = 155520.

The previous prime is 544403. The next prime is 544429. The reversal of 544404 is 404445.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 544404.

It is not an unprimeable number, because it can be changed into a prime (544403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3157 + ... + 3324.

2⁵⁴⁴⁴⁰⁴ is an apocalyptic number.

It is an amenable number.

544404 is an abundant number, since it is smaller than the sum of its proper divisors (907564).

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

544404 is a wasteful number, since it uses less digits than its factorization.

544404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6495 (or 6493 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 544404 is about 737.8373804572. The cubic root of 544404 is about 81.6533052323.

Adding to 544404 its reverse (404445), we get a palindrome (948849).

The spelling of 544404 in words is "five hundred forty-four thousand, four hundred four".