538868 has 24 divisors (see below), whose sum is σ = 1059744. Its totient is φ = 237600.

The previous prime is 538841. The next prime is 538871. The reversal of 538868 is 868835.

It is a happy number.

It is an Ulam number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 538868.

It is an unprimeable number.

538868 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1463 + ... + 1793.

It is an arithmetic number, because the mean of its divisors is an integer number (44156).

2⁵³⁸⁸⁶⁸ is an apocalyptic number.

It is an amenable number.

538868 is a deficient number, since it is larger than the sum of its proper divisors (520876).

538868 is a wasteful number, since it uses less digits than its factorization.

538868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383 (or 381 counting only the distinct ones).

The product of its digits is 46080, while the sum is 38.

The square root of 538868 is about 734.0762903132. The cubic root of 538868 is about 81.3755864542.

The spelling of 538868 in words is "five hundred thirty-eight thousand, eight hundred sixty-eight".