538169568 has 48 divisors (see below), whose sum is σ = 1413941760. Its totient is φ = 179231616.

The previous prime is 538169549. The next prime is 538169581. The reversal of 538169568 is 865961835.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 538169568.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167271 + ... + 170457.

It is an arithmetic number, because the mean of its divisors is an integer number (29457120).

Almost surely, 2^538169568 is an apocalyptic number.

It is an amenable number.

538169568 is an abundant number, since it is smaller than the sum of its proper divisors (875772192).

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

538169568 is a wasteful number, since it uses less digits than its factorization.

538169568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4959 (or 4951 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 51.

The square root of 538169568 is about 23198.4820193046. The cubic root of 538169568 is about 813.4041402717.

The spelling of 538169568 in words is "five hundred thirty-eight million, one hundred sixty-nine thousand, five hundred sixty-eight".