38840197 has 8 divisors (see below), whose sum is σ = 42476832. Its totient is φ = 35221200.

The previous prime is 38840177. The next prime is 38840203. The reversal of 38840197 is 79104883.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 38840197 - 2¹⁵ = 38807429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38840107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 438 + ... + 8824.

It is an arithmetic number, because the mean of its divisors is an integer number (5309604).

Almost surely, 2^38840197 is an apocalyptic number.

It is an amenable number.

38840197 is a deficient number, since it is larger than the sum of its proper divisors (3636635).

38840197 is a wasteful number, since it uses less digits than its factorization.

38840197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8819.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 38840197 is about 6232.1903854103. The cubic root of 38840197 is about 338.6573258105.

The spelling of 38840197 in words is "thirty-eight million, eight hundred forty thousand, one hundred ninety-seven".