38202643 has 2 divisors, whose sum is σ = 38202644. Its totient is φ = 38202642.

The previous prime is 38202641. The next prime is 38202649. The reversal of 38202643 is 34620283.

38202643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38202643 - 2¹ = 38202641 is a prime.

Together with 38202641, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (38202641) 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 as a sum of consecutive naturals, namely, 19101321 + 19101322.

It is an arithmetic number, because the mean of its divisors is an integer number (19101322).

Almost surely, 2^38202643 is an apocalyptic number.

38202643 is a deficient number, since it is larger than the sum of its proper divisors (1).

38202643 is an equidigital number, since it uses as much as digits as its factorization.

38202643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 38202643 is about 6180.8286661256. The cubic root of 38202643 is about 336.7940962352.

The spelling of 38202643 in words is "thirty-eight million, two hundred two thousand, six hundred forty-three".