512244 has 72 divisors (see below), whose sum is σ = 1467648. Its totient is φ = 155520.

The previous prime is 512207. The next prime is 512249. The reversal of 512244 is 442215.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16509 + ... + 16539.

It is an arithmetic number, because the mean of its divisors is an integer number (20384).

2⁵¹²²⁴⁴ is an apocalyptic number.

512244 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 512244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (733824).

512244 is an abundant number, since it is smaller than the sum of its proper divisors (955404).

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

512244 is a wasteful number, since it uses less digits than its factorization.

512244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67 (or 53 counting only the distinct ones).

The product of its digits is 320, while the sum is 18.

The square root of 512244 is about 715.7122326746. The cubic root of 512244 is about 80.0127063151.

Adding to 512244 its reverse (442215), we get a palindrome (954459).

The spelling of 512244 in words is "five hundred twelve thousand, two hundred forty-four".