539940818 has 4 divisors (see below), whose sum is σ = 809911230. Its totient is φ = 269970408.

The previous prime is 539940811. The next prime is 539940833. The reversal of 539940818 is 818049935.

539940818 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 479303449 + 60637369 = 21893^2 + 7787^2 .

It is not an unprimeable number, because it can be changed into a prime (539940811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134985203 + ... + 134985206.

Almost surely, 2^539940818 is an apocalyptic number.

539940818 is a deficient number, since it is larger than the sum of its proper divisors (269970412).

539940818 is a wasteful number, since it uses less digits than its factorization.

539940818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269970411.

The product of its (nonzero) digits is 311040, while the sum is 47.

The square root of 539940818 is about 23236.6266484617. The cubic root of 539940818 is about 814.2955348799.

The spelling of 539940818 in words is "five hundred thirty-nine million, nine hundred forty thousand, eight hundred eighteen".