538383506 has 32 divisors (see below), whose sum is σ = 902223360. Its totient is φ = 239452416.

The previous prime is 538383497. The next prime is 538383509. The reversal of 538383506 is 605383835.

It is not an unprimeable number, because it can be changed into a prime (538383509) 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, 391436 + ... + 392808.

It is an arithmetic number, because the mean of its divisors is an integer number (28194480).

Almost surely, 2^538383506 is an apocalyptic number.

538383506 is a deficient number, since it is larger than the sum of its proper divisors (363839854).

538383506 is a wasteful number, since it uses less digits than its factorization.

538383506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2018.

The product of its (nonzero) digits is 259200, while the sum is 41.

The square root of 538383506 is about 23203.0925956003. The cubic root of 538383506 is about 813.5119098988.

The spelling of 538383506 in words is "five hundred thirty-eight million, three hundred eighty-three thousand, five hundred six".