539641968 has 80 divisors (see below), whose sum is σ = 1430908416. Its totient is φ = 175168000.

The previous prime is 539641957. The next prime is 539641987. The reversal of 539641968 is 869146935.

It is a self number, because there is not a number n which added to its sum of digits gives 539641968.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 565780 + ... + 566732.

Almost surely, 2^539641968 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 539641968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (715454208).

539641968 is an abundant number, since it is smaller than the sum of its proper divisors (891266448).

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

539641968 is a wasteful number, since it uses less digits than its factorization.

539641968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1262 (or 1256 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 51.

The square root of 539641968 is about 23230.1951778284. The cubic root of 539641968 is about 814.1452732687.

The spelling of 539641968 in words is "five hundred thirty-nine million, six hundred forty-one thousand, nine hundred sixty-eight".