544406 has 4 divisors (see below), whose sum is σ = 816612. Its totient is φ = 272202.

The previous prime is 544403. The next prime is 544429. The reversal of 544406 is 604445.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 604445 = 5 ⋅120889.

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 544406.

It is not an unprimeable number, because it can be changed into a prime (544403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136100 + ... + 136103.

It is an arithmetic number, because the mean of its divisors is an integer number (204153).

2⁵⁴⁴⁴⁰⁶ is an apocalyptic number.

544406 is a deficient number, since it is larger than the sum of its proper divisors (272206).

544406 is a wasteful number, since it uses less digits than its factorization.

544406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272205.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 544406 is about 737.8387357682. The cubic root of 544406 is about 81.6534052232.

The spelling of 544406 in words is "five hundred forty-four thousand, four hundred six".