539360640 has 640 divisors, whose sum is σ = 2399896800. Its totient is φ = 113799168.

The previous prime is 539360629. The next prime is 539360641. The reversal of 539360640 is 46063935.

539360640 is a `hidden beast` number, since 5 + 3 + 9 + 3 + 6 + 0 + 640 = 666.

It is a tau number, because it is divible by the number of its divisors (640).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 539360595 and 539360604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (539360641) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 41489274 + ... + 41489286.

Almost surely, 2^539360640 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 539360640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1199948400).

539360640 is an abundant number, since it is smaller than the sum of its proper divisors (1860536160).

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

539360640 is an equidigital number, since it uses as much as digits as its factorization.

539360640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69 (or 30 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 36.

The square root of 539360640 is about 23224.1391659626. The cubic root of 539360640 is about 814.0037710084.

The spelling of 539360640 in words is "five hundred thirty-nine million, three hundred sixty thousand, six hundred forty".