38320939 has 4 divisors (see below), whose sum is σ = 38337880. Its totient is φ = 38304000.

The previous prime is 38320927. The next prime is 38320943. The reversal of 38320939 is 93902383.

38320939 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.

It is a cyclic number.

It is not a de Polignac number, because 38320939 - 2⁹ = 38320427 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38320898 and 38320907.

It is not an unprimeable number, because it can be changed into a prime (38320949) 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 in 3 ways as a sum of consecutive naturals, for example, 4437 + ... + 9814.

It is an arithmetic number, because the mean of its divisors is an integer number (9584470).

Almost surely, 2^38320939 is an apocalyptic number.

38320939 is a deficient number, since it is larger than the sum of its proper divisors (16941).

38320939 is a wasteful number, since it uses less digits than its factorization.

38320939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16940.

The product of its (nonzero) digits is 34992, while the sum is 37.

The square root of 38320939 is about 6190.3908600346. The cubic root of 38320939 is about 337.1413701269.

The spelling of 38320939 in words is "thirty-eight million, three hundred twenty thousand, nine hundred thirty-nine".