38386518 has 16 divisors (see below), whose sum is σ = 77327040. Its totient is φ = 12703176.

The previous prime is 38386499. The next prime is 38386519. The reversal of 38386518 is 81568383.

It is a self number, because there is not a number n which added to its sum of digits gives 38386518.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38386519) 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, 22180 + ... + 23847.

It is an arithmetic number, because the mean of its divisors is an integer number (4832940).

Almost surely, 2^38386518 is an apocalyptic number.

38386518 is an abundant number, since it is smaller than the sum of its proper divisors (38940522).

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

38386518 is a wasteful number, since it uses less digits than its factorization.

38386518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46171.

The product of its digits is 138240, while the sum is 42.

The square root of 38386518 is about 6195.6854342357. The cubic root of 38386518 is about 337.3335783074. Note that the first 3 decimals are identical.

The spelling of 38386518 in words is "thirty-eight million, three hundred eighty-six thousand, five hundred eighteen".