539490 has 48 divisors (see below), whose sum is σ = 1510272. Its totient is φ = 122976.

The previous prime is 539479. The next prime is 539501. The reversal of 539490 is 94935.

It is an interprime number because it is at equal distance from previous prime (539479) and next prime (539501).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

539490 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, 1287 + ... + 1653.

It is an arithmetic number, because the mean of its divisors is an integer number (31464).

2⁵³⁹⁴⁹⁰ is an apocalyptic number.

It is a pronic number, being equal to 734×735.

It is a practical number, because each smaller number is the sum of distinct divisors of 539490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (755136).

539490 is an abundant number, since it is smaller than the sum of its proper divisors (970782).

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

539490 is a wasteful number, since it uses less digits than its factorization.

539490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391 (or 384 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 539490 is about 734.4998298162. The cubic root of 539490 is about 81.4068842566.

The spelling of 539490 in words is "five hundred thirty-nine thousand, four hundred ninety".