388069 has 4 divisors (see below), whose sum is σ = 423360. Its totient is φ = 352780.

The previous prime is 388067. The next prime is 388081. The reversal of 388069 is 960883.

388069 is nontrivially palindromic in base 16.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 388069 - 2¹ = 388067 is a prime.

It is a super-2 number, since 2×388069² = 301195097522, which contains 22 as substring.

It is a Duffinian number.

388069 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388067) 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 in 3 ways as a sum of consecutive naturals, for example, 17629 + ... + 17650.

It is an arithmetic number, because the mean of its divisors is an integer number (105840).

2³⁸⁸⁰⁶⁹ is an apocalyptic number.

It is an amenable number.

388069 is a deficient number, since it is larger than the sum of its proper divisors (35291).

388069 is a wasteful number, since it uses less digits than its factorization.

388069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35290.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 388069 is about 622.9518440457. The cubic root of 388069 is about 72.9406535868.

The spelling of 388069 in words is "three hundred eighty-eight thousand, sixty-nine".