38840243 has 8 divisors (see below), whose sum is σ = 42848736. Its totient is φ = 34977600.

The previous prime is 38840233. The next prime is 38840267. The reversal of 38840243 is 34204883.

38840243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 38840243 - 2⁴ = 38840227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38840203) 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 7 ways as a sum of consecutive naturals, for example, 35903 + ... + 36968.

It is an arithmetic number, because the mean of its divisors is an integer number (5356092).

Almost surely, 2^38840243 is an apocalyptic number.

38840243 is a deficient number, since it is larger than the sum of its proper divisors (4008493).

38840243 is a wasteful number, since it uses less digits than its factorization.

38840243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72925.

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 38840243 is about 6232.1940759254. The cubic root of 38840243 is about 338.6574595056.

The spelling of 38840243 in words is "thirty-eight million, eight hundred forty thousand, two hundred forty-three".