539441280 has 384 divisors, whose sum is σ = 2256958080. Its totient is φ = 115900416.

The previous prime is 539441251. The next prime is 539441281. The reversal of 539441280 is 82144935.

539441280 is a `hidden beast` number, since 539 + 4 + 41 + 2 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (539441281) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 685047 + ... + 685833.

It is an arithmetic number, because the mean of its divisors is an integer number (5877495).

Almost surely, 2^539441280 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 539441280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1128479040).

539441280 is an abundant number, since it is smaller than the sum of its proper divisors (1717516800).

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

539441280 is a wasteful number, since it uses less digits than its factorization.

539441280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836 (or 821 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 539441280 is about 23225.8752257046. The cubic root of 539441280 is about 814.0443363174.

The spelling of 539441280 in words is "five hundred thirty-nine million, four hundred forty-one thousand, two hundred eighty".