557244 has 36 divisors (see below), whose sum is σ = 1472016. Its totient is φ = 177408.

The previous prime is 557201. The next prime is 557261. The reversal of 557244 is 442755.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

557244 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 492 + ... + 1164.

2⁵⁵⁷²⁴⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 557244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (736008).

557244 is an abundant number, since it is smaller than the sum of its proper divisors (914772).

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

557244 is a wasteful number, since it uses less digits than its factorization.

557244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706 (or 701 counting only the distinct ones).

The product of its digits is 5600, while the sum is 27.

The square root of 557244 is about 746.4877761893. The cubic root of 557244 is about 82.2902661586.

Adding to 557244 its reverse (442755), we get a palindrome (999999).

The spelling of 557244 in words is "five hundred fifty-seven thousand, two hundred forty-four".