538099638 has 16 divisors (see below), whose sum is σ = 1076762160. Its totient is φ = 179272736.

The previous prime is 538099637. The next prime is 538099649. The reversal of 538099638 is 836990835.

538099638 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538099631) 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, 10473 + ... + 34436.

It is an arithmetic number, because the mean of its divisors is an integer number (67297635).

Almost surely, 2^538099638 is an apocalyptic number.

538099638 is an abundant number, since it is smaller than the sum of its proper divisors (538662522).

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

538099638 is a wasteful number, since it uses less digits than its factorization.

538099638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46911.

The product of its (nonzero) digits is 1399680, while the sum is 51.

The square root of 538099638 is about 23196.9747596535. The cubic root of 538099638 is about 813.3689073768.

The spelling of 538099638 in words is "five hundred thirty-eight million, ninety-nine thousand, six hundred thirty-eight".