544520 has 16 divisors (see below), whose sum is σ = 1225260. Its totient is φ = 217792.

The previous prime is 544517. The next prime is 544543. The reversal of 544520 is 25445.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 438244 + 106276 = 662^2 + 326^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 544492 and 544501.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 544520.

It is an unprimeable 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 3 ways as a sum of consecutive naturals, for example, 6767 + ... + 6846.

2⁵⁴⁴⁵²⁰ is an apocalyptic number.

It is an amenable number.

544520 is an abundant number, since it is smaller than the sum of its proper divisors (680740).

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

544520 is a wasteful number, since it uses less digits than its factorization.

544520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13624 (or 13620 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 544520 is about 737.9159843776. The cubic root of 544520 is about 81.6591043023.

Adding to 544520 its reverse (25445), we get a palindrome (569965).

It can be divided in two parts, 5445 and 20, that multiplied together give a square (108900 = 330²).

The spelling of 544520 in words is "five hundred forty-four thousand, five hundred twenty".