539440539 has 16 divisors (see below), whose sum is σ = 789646080. Its totient is φ = 324848160.

The previous prime is 539440529. The next prime is 539440541. The reversal of 539440539 is 935044935.

It is a happy number.

It is not a de Polignac number, because 539440539 - 2¹³ = 539432347 is a prime.

It is a super-2 number, since 2×539440539² = 581992190233221042, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 539440539.

It is not an unprimeable number, because it can be changed into a prime (539440529) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46879 + ... + 57240.

It is an arithmetic number, because the mean of its divisors is an integer number (49352880).

Almost surely, 2^539440539 is an apocalyptic number.

539440539 is a deficient number, since it is larger than the sum of its proper divisors (250205541).

539440539 is a wasteful number, since it uses less digits than its factorization.

539440539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104290.

The product of its (nonzero) digits is 291600, while the sum is 42.

The square root of 539440539 is about 23225.8592736631. The cubic root of 539440539 is about 814.0439635816.

The spelling of 539440539 in words is "five hundred thirty-nine million, four hundred forty thousand, five hundred thirty-nine".