38109313 has 6 divisors (see below), whose sum is σ = 41888882. Its totient is φ = 34644720.

The previous prime is 38109301. The next prime is 38109319. The reversal of 38109313 is 31390183.

It can be written as a sum of positive squares in only one way, i.e., 22165264 + 15944049 = 4708^2 + 3993^2 .

It is not a de Polignac number, because 38109313 - 2⁹ = 38108801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38109319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 157356 + ... + 157597.

Almost surely, 2^38109313 is an apocalyptic number.

It is an amenable number.

38109313 is a deficient number, since it is larger than the sum of its proper divisors (3779569).

38109313 is a wasteful number, since it uses less digits than its factorization.

38109313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314975 (or 314964 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 38109313 is about 6173.2740907885. The cubic root of 38109313 is about 336.5196071552.

Adding to 38109313 its reverse (31390183), we get a palindrome (69499496).

The spelling of 38109313 in words is "thirty-eight million, one hundred nine thousand, three hundred thirteen".