538504018 has 16 divisors (see below), whose sum is σ = 870946776. Its totient is φ = 248238720.

The previous prime is 538504013. The next prime is 538504027. The reversal of 538504018 is 810405835.

It can be written as a sum of positive squares in 4 ways, for example, as 381928849 + 156575169 = 19543^2 + 12513^2 .

It is not an unprimeable number, because it can be changed into a prime (538504013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10038 + ... + 34318.

Almost surely, 2^538504018 is an apocalyptic number.

538504018 is a deficient number, since it is larger than the sum of its proper divisors (332442758).

538504018 is a wasteful number, since it uses less digits than its factorization.

538504018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25149.

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 538504018 is about 23205.6893455032. The cubic root of 538504018 is about 813.5726043246.

The spelling of 538504018 in words is "five hundred thirty-eight million, five hundred four thousand, eighteen".