539980 has 72 divisors (see below), whose sum is σ = 1436400. Its totient is φ = 169344.

The previous prime is 539947. The next prime is 539993. The reversal of 539980 is 89935.

It is an unprimeable number.

539980 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18606 + ... + 18634.

It is an arithmetic number, because the mean of its divisors is an integer number (19950).

2⁵³⁹⁹⁸⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 539980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (718200).

539980 is an abundant number, since it is smaller than the sum of its proper divisors (896420).

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

539980 is a wasteful number, since it uses less digits than its factorization.

539980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71 (or 62 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 539980 is about 734.8333144326. The cubic root of 539980 is about 81.4315231456.

The spelling of 539980 in words is "five hundred thirty-nine thousand, nine hundred eighty".