38205638 has 4 divisors (see below), whose sum is σ = 57308460. Its totient is φ = 19102818.

The previous prime is 38205631. The next prime is 38205641. The reversal of 38205638 is 83650283.

38205638 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83650283 = 71 ⋅1178173.

It is a junction number, because it is equal to n+sod(n) for n = 38205598 and 38205607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38205631) by changing a digit.

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 as a sum of consecutive naturals, namely, 9551408 + ... + 9551411.

It is an arithmetic number, because the mean of its divisors is an integer number (14327115).

Almost surely, 2^38205638 is an apocalyptic number.

38205638 is a deficient number, since it is larger than the sum of its proper divisors (19102822).

38205638 is a wasteful number, since it uses less digits than its factorization.

38205638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19102821.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 38205638 is about 6181.0709428059. The cubic root of 38205638 is about 336.8028973013.

The spelling of 38205638 in words is "thirty-eight million, two hundred five thousand, six hundred thirty-eight".