538804 has 18 divisors (see below), whose sum is σ = 1097250. Its totient is φ = 230832.

The previous prime is 538801. The next prime is 538817. The reversal of 538804 is 408835.

It can be written as a sum of positive squares in only one way, i.e., 362404 + 176400 = 602^2 + 420^2 .

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538801) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1179 + ... + 1570.

2⁵³⁸⁸⁰⁴ is an apocalyptic number.

It is an amenable number.

538804 is an abundant number, since it is smaller than the sum of its proper divisors (558446).

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

538804 is a wasteful number, since it uses less digits than its factorization.

538804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2767 (or 2758 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 538804 is about 734.0326968194. The cubic root of 538804 is about 81.3723647353.

It can be divided in two parts, 5 and 38804, that added together give a square (38809 = 197²).

The spelling of 538804 in words is "five hundred thirty-eight thousand, eight hundred four".