544820 has 12 divisors (see below), whose sum is σ = 1144164. Its totient is φ = 217920.

The previous prime is 544813. The next prime is 544837. The reversal of 544820 is 28445.

It can be written as a sum of positive squares in 2 ways, for example, as 425104 + 119716 = 652^2 + 346^2 .

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a plaindrome in base 12.

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 544820.

It is an unprimeable number.

544820 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13601 + ... + 13640.

It is an arithmetic number, because the mean of its divisors is an integer number (95347).

2⁵⁴⁴⁸²⁰ is an apocalyptic number.

It is an amenable number.

544820 is an abundant number, since it is smaller than the sum of its proper divisors (599344).

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

544820 is a wasteful number, since it uses less digits than its factorization.

544820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27250 (or 27248 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 544820 is about 738.1192315609. The cubic root of 544820 is about 81.6740980789.

The spelling of 544820 in words is "five hundred forty-four thousand, eight hundred twenty".