539424 has 36 divisors (see below), whose sum is σ = 1534806. Its totient is φ = 179712.

The previous prime is 539401. The next prime is 539447. The reversal of 539424 is 424935.

It is an interprime number because it is at equal distance from previous prime (539401) and next prime (539447).

It can be written as a sum of positive squares in only one way, i.e., 535824 + 3600 = 732^2 + 60^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

539424 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 649 + ... + 1224.

2⁵³⁹⁴²⁴ is an apocalyptic number.

It is an amenable number.

539424 is an abundant number, since it is smaller than the sum of its proper divisors (995382).

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

539424 is a wasteful number, since it uses less digits than its factorization.

539424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1889 (or 1878 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 539424 is about 734.4548999088. The cubic root of 539424 is about 81.4035644092.

The spelling of 539424 in words is "five hundred thirty-nine thousand, four hundred twenty-four".