539942 has 16 divisors (see below), whose sum is σ = 918960. Its totient is φ = 235872.

The previous prime is 539921. The next prime is 539947. The reversal of 539942 is 249935.

It is a junction number, because it is equal to n+sod(n) for n = 539899 and 539908.

It is a congruent number.

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

539942 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 7 ways as a sum of consecutive naturals, for example, 53 + ... + 1040.

It is an arithmetic number, because the mean of its divisors is an integer number (57435).

2⁵³⁹⁹⁴² is an apocalyptic number.

539942 is a deficient number, since it is larger than the sum of its proper divisors (379018).

539942 is a wasteful number, since it uses less digits than its factorization.

539942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1127.

The product of its digits is 9720, while the sum is 32.

The square root of 539942 is about 734.8074577738. The cubic root of 539942 is about 81.4296129079.

The spelling of 539942 in words is "five hundred thirty-nine thousand, nine hundred forty-two".