539740 has 12 divisors (see below), whose sum is σ = 1133496. Its totient is φ = 215888.

The previous prime is 539729. The next prime is 539743. The reversal of 539740 is 47935.

It is a junction number, because it is equal to n+sod(n) for n = 539699 and 539708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (539743) by changing a digit.

539740 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 3 ways as a sum of consecutive naturals, for example, 13474 + ... + 13513.

It is an arithmetic number, because the mean of its divisors is an integer number (94458).

2⁵³⁹⁷⁴⁰ is an apocalyptic number.

It is an amenable number.

539740 is an abundant number, since it is smaller than the sum of its proper divisors (593756).

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

539740 is a wasteful number, since it uses less digits than its factorization.

539740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26996 (or 26994 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 539740 is about 734.6699939429. The cubic root of 539740 is about 81.4194569816.

The spelling of 539740 in words is "five hundred thirty-nine thousand, seven hundred forty".