538541568 has 160 divisors (see below), whose sum is σ = 1610611200. Its totient is φ = 177666048.

The previous prime is 538541543. The next prime is 538541569. The reversal of 538541568 is 865145835.

538541568 is a `hidden beast` number, since 5 + 3 + 85 + 4 + 1 + 568 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538541569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2253193 + ... + 2253431.

It is an arithmetic number, because the mean of its divisors is an integer number (10066320).

Almost surely, 2^538541568 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 538541568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (805305600).

538541568 is an abundant number, since it is smaller than the sum of its proper divisors (1072069632).

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

538541568 is a wasteful number, since it uses less digits than its factorization.

538541568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429 (or 407 counting only the distinct ones).

The product of its digits is 576000, while the sum is 45.

The square root of 538541568 is about 23206.4984002326. The cubic root of 538541568 is about 813.5915140821.

The spelling of 538541568 in words is "five hundred thirty-eight million, five hundred forty-one thousand, five hundred sixty-eight".