524244 has 36 divisors (see below), whose sum is σ = 1415904. Its totient is φ = 147888.

The previous prime is 524243. The next prime is 524257. The reversal of 524244 is 442425.

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

It is a self number, because there is not a number n which added to its sum of digits gives 524244.

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 524244.

It is not an unprimeable number, because it can be changed into a prime (524243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6597 + ... + 6675.

524244 is a Friedman number, since it can be written as (2^4)^5/2-44, using all its digits and the basic arithmetic operations.

2⁵²⁴²⁴⁴ 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 524244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (707952).

524244 is an abundant number, since it is smaller than the sum of its proper divisors (891660).

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

524244 is a wasteful number, since it uses less digits than its factorization.

524244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172 (or 91 counting only the distinct ones).

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

The square root of 524244 is about 724.0469598030. The cubic root of 524244 is about 80.6326914121.

Multiplying 524244 by its sum of digits (21), we get a square (11009124 = 3318²).

524244 divided by its sum of digits (21) gives a square (24964 = 158²).

Adding to 524244 its reverse (442425), we get a palindrome (966669).

The spelling of 524244 in words is "five hundred twenty-four thousand, two hundred forty-four".