539215818 has 16 divisors (see below), whose sum is σ = 1125320256. Its totient is φ = 171923840.

The previous prime is 539215777. The next prime is 539215867. The reversal of 539215818 is 818512935.

It is a self number, because there is not a number n which added to its sum of digits gives 539215818.

It is an unprimeable number.

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, 1953543 + ... + 1953818.

It is an arithmetic number, because the mean of its divisors is an integer number (70332516).

Almost surely, 2^539215818 is an apocalyptic number.

539215818 is an abundant number, since it is smaller than the sum of its proper divisors (586104438).

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

539215818 is a wasteful number, since it uses less digits than its factorization.

539215818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3907389.

The product of its digits is 86400, while the sum is 42.

The square root of 539215818 is about 23221.0210369828. The cubic root of 539215818 is about 813.9309093039.

The spelling of 539215818 in words is "five hundred thirty-nine million, two hundred fifteen thousand, eight hundred eighteen".