539440540 has 24 divisors (see below), whose sum is σ = 1152028080. Its totient is φ = 212118528.

The previous prime is 539440529. The next prime is 539440541. The reversal of 539440540 is 45044935.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 539440496 and 539440505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (539440541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227397 + ... + 229756.

It is an arithmetic number, because the mean of its divisors is an integer number (48001170).

Almost surely, 2^539440540 is an apocalyptic number.

It is an amenable number.

539440540 is an abundant number, since it is smaller than the sum of its proper divisors (612587540).

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

539440540 is a wasteful number, since it uses less digits than its factorization.

539440540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457221 (or 457219 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 539440540 is about 23225.8592951908. The cubic root of 539440540 is about 814.0439640847.

The spelling of 539440540 in words is "five hundred thirty-nine million, four hundred forty thousand, five hundred forty".