538308 has 36 divisors (see below), whose sum is σ = 1434160. Its totient is φ = 169776.

The previous prime is 538303. The next prime is 538309. The reversal of 538308 is 803835.

It is a tau number, because it is divible by the number of its divisors (36).

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (538301) by changing a digit.

538308 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 11 ways as a sum of consecutive naturals, for example, 291 + ... + 1077.

2⁵³⁸³⁰⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 538308, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (717080).

538308 is an abundant number, since it is smaller than the sum of its proper divisors (895852).

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

538308 is a wasteful number, since it uses less digits than its factorization.

538308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816 (or 811 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 538308 is about 733.6947594197. The cubic root of 538308 is about 81.3473877591.

The spelling of 538308 in words is "five hundred thirty-eight thousand, three hundred eight".