539000640 has 336 divisors, whose sum is σ = 2000615760. Its totient is φ = 132710400.

The previous prime is 539000633. The next prime is 539000681. The reversal of 539000640 is 46000935.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 111007296 + 427993344 = 10536^2 + 20688^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4944906 + ... + 4945014.

Almost surely, 2^539000640 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 539000640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1000307880).

539000640 is an abundant number, since it is smaller than the sum of its proper divisors (1461615120).

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

539000640 is a wasteful number, since it uses less digits than its factorization.

539000640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250 (or 237 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 539000640 is about 23216.3873158595. The cubic root of 539000640 is about 813.8226265462.

The spelling of 539000640 in words is "five hundred thirty-nine million, six hundred forty", and thus it is an aban number.