538873578 has 96 divisors (see below), whose sum is σ = 1273708800. Its totient is φ = 164186880.

The previous prime is 538873553. The next prime is 538873579. The reversal of 538873578 is 875378835.

538873578 is a `hidden beast` number, since 538 + 8 + 7 + 35 + 78 = 666.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (538873579) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 899323 + ... + 899921.

It is an arithmetic number, because the mean of its divisors is an integer number (13267800).

Almost surely, 2^538873578 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 538873578, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (636854400).

538873578 is an abundant number, since it is smaller than the sum of its proper divisors (734835222).

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

538873578 is a wasteful number, since it uses less digits than its factorization.

538873578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724 (or 721 counting only the distinct ones).

The product of its digits is 5644800, while the sum is 54.

The square root of 538873578 is about 23213.6506823033. The cubic root of 538873578 is about 813.7586723505.

The spelling of 538873578 in words is "five hundred thirty-eight million, eight hundred seventy-three thousand, five hundred seventy-eight".