538812 has 30 divisors (see below), whose sum is σ = 1409408. Its totient is φ = 179496.

The previous prime is 538801. The next prime is 538817. The reversal of 538812 is 218835.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a plaindrome in base 11.

It is a zygodrome in base 11.

It is a congruent number.

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

538812 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 9 ways as a sum of consecutive naturals, for example, 508 + ... + 1155.

2⁵³⁸⁸¹² is an apocalyptic number.

It is an amenable number.

538812 is an abundant number, since it is smaller than the sum of its proper divisors (870596).

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

538812 is a wasteful number, since it uses less digits than its factorization.

538812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1679 (or 1668 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 538812 is about 734.0381461477. The cubic root of 538812 is about 81.3727674641.

The spelling of 538812 in words is "five hundred thirty-eight thousand, eight hundred twelve".