388448273 has 2 divisors, whose sum is σ = 388448274. Its totient is φ = 388448272.

The previous prime is 388448251. The next prime is 388448297. The reversal of 388448273 is 372844883.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 386397649 + 2050624 = 19657^2 + 1432^2 .

It is a cyclic number.

It is not a de Polignac number, because 388448273 - 2²⁴ = 371671057 is a prime.

It is not a weakly prime, because it can be changed into another prime (388448233) 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, 194224136 + 194224137.

It is an arithmetic number, because the mean of its divisors is an integer number (194224137).

Almost surely, 2^388448273 is an apocalyptic number.

It is an amenable number.

388448273 is a deficient number, since it is larger than the sum of its proper divisors (1).

388448273 is an equidigital number, since it uses as much as digits as its factorization.

388448273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1032192, while the sum is 47.

The square root of 388448273 is about 19709.0911256709. The cubic root of 388448273 is about 729.6440830817.

The spelling of 388448273 in words is "three hundred eighty-eight million, four hundred forty-eight thousand, two hundred seventy-three".