544478 has 8 divisors (see below), whose sum is σ = 891000. Its totient is φ = 247480.

The previous prime is 544477. The next prime is 544487. The reversal of 544478 is 874445.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544471) 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 3 ways as a sum of consecutive naturals, for example, 12353 + ... + 12396.

It is an arithmetic number, because the mean of its divisors is an integer number (111375).

2⁵⁴⁴⁴⁷⁸ is an apocalyptic number.

544478 is a deficient number, since it is larger than the sum of its proper divisors (346522).

544478 is a wasteful number, since it uses less digits than its factorization.

544478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24762.

The product of its digits is 17920, while the sum is 32.

The square root of 544478 is about 737.8875253045. The cubic root of 544478 is about 81.6570047341.

Subtracting from 544478 its sum of digits (32), we obtain a triangular number (544446 = T₁₀₄₃).

The spelling of 544478 in words is "five hundred forty-four thousand, four hundred seventy-eight".