539836128 has 144 divisors (see below), whose sum is σ = 1725403680. Its totient is φ = 158856192.

The previous prime is 539836123. The next prime is 539836163. The reversal of 539836128 is 821638935.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (539836123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 82978 + ... + 89246.

It is an arithmetic number, because the mean of its divisors is an integer number (11981970).

Almost surely, 2^539836128 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 539836128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (862701840).

539836128 is an abundant number, since it is smaller than the sum of its proper divisors (1185567552).

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

539836128 is a wasteful number, since it uses less digits than its factorization.

539836128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6321 (or 6310 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 539836128 is about 23234.3738456624. The cubic root of 539836128 is about 814.2429031179.

The spelling of 539836128 in words is "five hundred thirty-nine million, eight hundred thirty-six thousand, one hundred twenty-eight".