538888 has 16 divisors (see below), whose sum is σ = 1154880. Its totient is φ = 230928.

The previous prime is 538877. The next prime is 538921. The reversal of 538888 is 888835.

It is a self number, because there is not a number n which added to its sum of digits gives 538888.

It is an unprimeable number.

538888 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 3 ways as a sum of consecutive naturals, for example, 4756 + ... + 4867.

It is an arithmetic number, because the mean of its divisors is an integer number (72180).

2⁵³⁸⁸⁸⁸ is an apocalyptic number.

It is an amenable number.

538888 is an abundant number, since it is smaller than the sum of its proper divisors (615992).

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

538888 is a wasteful number, since it uses less digits than its factorization.

538888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9636 (or 9632 counting only the distinct ones).

The product of its digits is 61440, while the sum is 40.

The square root of 538888 is about 734.0899127491. The cubic root of 538888 is about 81.3765931891.

It can be divided in two parts, 5388 and 88, that added together give a square (5476 = 74²).

The spelling of 538888 in words is "five hundred thirty-eight thousand, eight hundred eighty-eight".