539128434 has 64 divisors (see below), whose sum is σ = 1195907328. Its totient is φ = 160972800.

The previous prime is 539128411. The next prime is 539128451. The reversal of 539128434 is 434821935.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 539128392 and 539128401.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 840754 + ... + 841394.

It is an arithmetic number, because the mean of its divisors is an integer number (18686052).

Almost surely, 2^539128434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 539128434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (597953664).

539128434 is an abundant number, since it is smaller than the sum of its proper divisors (656778894).

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

539128434 is a wasteful number, since it uses less digits than its factorization.

539128434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 963.

The product of its digits is 103680, while the sum is 39.

The square root of 539128434 is about 23219.1393897362. The cubic root of 539128434 is about 813.8869390427.

The spelling of 539128434 in words is "five hundred thirty-nine million, one hundred twenty-eight thousand, four hundred thirty-four".