539944 has 8 divisors (see below), whose sum is σ = 1012410. Its totient is φ = 269968.

The previous prime is 539921. The next prime is 539947. The reversal of 539944 is 449935.

It can be written as a sum of positive squares in only one way, i.e., 348100 + 191844 = 590^2 + 438^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a d-powerful number, because it can be written as 5³ + 3¹² + 9³ + 9⁴ + 4³ + 4⁵ .

It is not an unprimeable number, because it can be changed into a prime (539947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33739 + ... + 33754.

2⁵³⁹⁹⁴⁴ is an apocalyptic number.

It is an amenable number.

539944 is a deficient number, since it is larger than the sum of its proper divisors (472466).

539944 is a wasteful number, since it uses less digits than its factorization.

539944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67499 (or 67495 counting only the distinct ones).

The product of its digits is 19440, while the sum is 34.

The square root of 539944 is about 734.8088186733. The cubic root of 539944 is about 81.4297134489.

Subtracting from 539944 its reverse (449935), we obtain a palindrome (90009).

The spelling of 539944 in words is "five hundred thirty-nine thousand, nine hundred forty-four".