544345 has 4 divisors (see below), whose sum is σ = 653220. Its totient is φ = 435472.

The previous prime is 544279. The next prime is 544367. The reversal of 544345 is 543445.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 257049 + 287296 = 507^2 + 536^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-544345 is a prime.

It is a super-2 number, since 2×544345² = 592622958050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54430 + ... + 54439.

It is an arithmetic number, because the mean of its divisors is an integer number (163305).

2⁵⁴⁴³⁴⁵ is an apocalyptic number.

It is an amenable number.

544345 is a deficient number, since it is larger than the sum of its proper divisors (108875).

544345 is a wasteful number, since it uses less digits than its factorization.

544345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108874.

The product of its digits is 4800, while the sum is 25.

The square root of 544345 is about 737.7973976642. The cubic root of 544345 is about 81.6503553892.

Subtracting from 544345 its reverse (543445), we obtain a square (900 = 30²).

The spelling of 544345 in words is "five hundred forty-four thousand, three hundred forty-five".