388020263 has 2 divisors, whose sum is σ = 388020264. Its totient is φ = 388020262.

The previous prime is 388020253. The next prime is 388020289. The reversal of 388020263 is 362020883.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 388020263 - 2²⁸ = 119584807 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (388020233) 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, 194010131 + 194010132.

It is an arithmetic number, because the mean of its divisors is an integer number (194010132).

Almost surely, 2^388020263 is an apocalyptic number.

388020263 is a deficient number, since it is larger than the sum of its proper divisors (1).

388020263 is an equidigital number, since it uses as much as digits as its factorization.

388020263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 388020263 is about 19698.2299458606. The cubic root of 388020263 is about 729.3759995674.

The spelling of 388020263 in words is "three hundred eighty-eight million, twenty thousand, two hundred sixty-three".