38194243 has 2 divisors, whose sum is σ = 38194244. Its totient is φ = 38194242.

The previous prime is 38194241. The next prime is 38194253. The reversal of 38194243 is 34249183.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38194243 - 2¹ = 38194241 is a prime.

Together with 38194241, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 38194199 and 38194208.

It is not a weakly prime, because it can be changed into another prime (38194241) 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 as a sum of consecutive naturals, namely, 19097121 + 19097122.

It is an arithmetic number, because the mean of its divisors is an integer number (19097122).

Almost surely, 2^38194243 is an apocalyptic number.

38194243 is a deficient number, since it is larger than the sum of its proper divisors (1).

38194243 is an equidigital number, since it uses as much as digits as its factorization.

38194243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 34.

The square root of 38194243 is about 6180.1491082336. The cubic root of 38194243 is about 336.7694096554.

The spelling of 38194243 in words is "thirty-eight million, one hundred ninety-four thousand, two hundred forty-three".