38426291 has 2 divisors, whose sum is σ = 38426292. Its totient is φ = 38426290.

The previous prime is 38426257. The next prime is 38426293. The reversal of 38426291 is 19262483.

38426291 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (19262483) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38426291 is a prime.

It is a Sophie Germain prime.

Together with 38426293, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (38426293) 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, 19213145 + 19213146.

It is an arithmetic number, because the mean of its divisors is an integer number (19213146).

Almost surely, 2^38426291 is an apocalyptic number.

38426291 is a deficient number, since it is larger than the sum of its proper divisors (1).

38426291 is an equidigital number, since it uses as much as digits as its factorization.

38426291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 35.

The square root of 38426291 is about 6198.8943368959. The cubic root of 38426291 is about 337.4500440006.

The spelling of 38426291 in words is "thirty-eight million, four hundred twenty-six thousand, two hundred ninety-one".