38928384018 has 24 divisors (see below), whose sum is σ = 84364692048. Its totient is φ = 12973072632.

The previous prime is 38928384017. The next prime is 38928384049. The reversal of 38928384018 is 81048382983.

It is a happy number.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (38928384017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 175380 + ... + 329567.

It is an arithmetic number, because the mean of its divisors is an integer number (3515195502).

Almost surely, 2^38928384018 is an apocalyptic number.

38928384018 is an abundant number, since it is smaller than the sum of its proper divisors (45436308030).

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

38928384018 is a wasteful number, since it uses less digits than its factorization.

38928384018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509238 (or 509235 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 54.

The spelling of 38928384018 in words is "thirty-eight billion, nine hundred twenty-eight million, three hundred eighty-four thousand, eighteen".