538818 has 16 divisors (see below), whose sum is σ = 1231680. Its totient is φ = 153936.

The previous prime is 538817. The next prime is 538823. The reversal of 538818 is 818835.

538818 is nontrivially palindromic in base 8.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 538818.

It is not an unprimeable number, because it can be changed into a prime (538817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6373 + ... + 6456.

It is an arithmetic number, because the mean of its divisors is an integer number (76980).

2⁵³⁸⁸¹⁸ is an apocalyptic number.

538818 is an abundant number, since it is smaller than the sum of its proper divisors (692862).

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

538818 is a wasteful number, since it uses less digits than its factorization.

538818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12841.

The product of its digits is 7680, while the sum is 33.

The square root of 538818 is about 734.0422331174. The cubic root of 538818 is about 81.3730695081.

The spelling of 538818 in words is "five hundred thirty-eight thousand, eight hundred eighteen".