38238018 has 64 divisors (see below), whose sum is σ = 95800320. Its totient is φ = 9905472.

The previous prime is 38238001. The next prime is 38238023. The reversal of 38238018 is 81083283.

38238018 is nontrivially palindromic in base 16.

38238018 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 38238018.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31621 + ... + 32807.

It is an arithmetic number, because the mean of its divisors is an integer number (1496880).

Almost surely, 2^38238018 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38238018, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47900160).

38238018 is an abundant number, since it is smaller than the sum of its proper divisors (57562302).

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

38238018 is a wasteful number, since it uses less digits than its factorization.

38238018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1271.

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 38238018 is about 6183.6896752667. The cubic root of 38238018 is about 336.8980193733.

The spelling of 38238018 in words is "thirty-eight million, two hundred thirty-eight thousand, eighteen".