38518 has 4 divisors (see below), whose sum is σ = 57780. Its totient is φ = 19258.

The previous prime is 38501. The next prime is 38543. The reversal of 38518 is 81583.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81583 = 17 ⋅4799.

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 38492 and 38501.

It is a congruent number.

It is an unprimeable number.

38518 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9628 + ... + 9631.

It is an arithmetic number, because the mean of its divisors is an integer number (14445).

2³⁸⁵¹⁸ is an apocalyptic number.

38518 is a deficient number, since it is larger than the sum of its proper divisors (19262).

38518 is a wasteful number, since it uses less digits than its factorization.

38518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19261.

The product of its digits is 960, while the sum is 25.

The square root of 38518 is about 196.2600315907. The cubic root of 38518 is about 33.7718285857.

The spelling of 38518 in words is "thirty-eight thousand, five hundred eighteen".