538868856 has 64 divisors (see below), whose sum is σ = 1434494880. Its totient is φ = 168099840.

The previous prime is 538868843. The next prime is 538868857. The reversal of 538868856 is 658868835.

It is a junction number, because it is equal to n+sod(n) for n = 538868796 and 538868805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538868857) 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, 70200 + ... + 77496.

Almost surely, 2^538868856 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 538868856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (717247440).

538868856 is an abundant number, since it is smaller than the sum of its proper divisors (895626024).

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

538868856 is a wasteful number, since it uses less digits than its factorization.

538868856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7504 (or 7500 counting only the distinct ones).

The product of its digits is 11059200, while the sum is 57.

The square root of 538868856 is about 23213.5489746829. The cubic root of 538868856 is about 813.7562954296.

The spelling of 538868856 in words is "five hundred thirty-eight million, eight hundred sixty-eight thousand, eight hundred fifty-six".