388449 has 8 divisors (see below), whose sum is σ = 575520. Its totient is φ = 258948.

The previous prime is 388403. The next prime is 388459. The reversal of 388449 is 944883.

It is not a de Polignac number, because 388449 - 2¹¹ = 386401 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (388459) 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 in 7 ways as a sum of consecutive naturals, for example, 7167 + ... + 7220.

It is an arithmetic number, because the mean of its divisors is an integer number (71940).

2³⁸⁸⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

388449 is a deficient number, since it is larger than the sum of its proper divisors (187071).

388449 is a wasteful number, since it uses less digits than its factorization.

388449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14396 (or 14390 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 388449 is about 623.2567689163. The cubic root of 388449 is about 72.9644538270.

The spelling of 388449 in words is "three hundred eighty-eight thousand, four hundred forty-nine".