538539128 has 8 divisors (see below), whose sum is σ = 1009760880. Its totient is φ = 269269560.

The previous prime is 538539121. The next prime is 538539149. The reversal of 538539128 is 821935835.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538539121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33658688 + ... + 33658703.

It is an arithmetic number, because the mean of its divisors is an integer number (126220110).

Almost surely, 2^538539128 is an apocalyptic number.

It is an amenable number.

538539128 is a deficient number, since it is larger than the sum of its proper divisors (471221752).

538539128 is a wasteful number, since it uses less digits than its factorization.

538539128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67317397 (or 67317393 counting only the distinct ones).

The product of its digits is 259200, while the sum is 44.

The square root of 538539128 is about 23206.4458286916. The cubic root of 538539128 is about 813.5902853523.

The spelling of 538539128 in words is "five hundred thirty-eight million, five hundred thirty-nine thousand, one hundred twenty-eight".