388545 has 8 divisors (see below), whose sum is σ = 621696. Its totient is φ = 207216.

The previous prime is 388541. The next prime is 388567. The reversal of 388545 is 545883.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 388545 - 2² = 388541 is a prime.

It is not an unprimeable number, because it can be changed into a prime (388541) 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, 12937 + ... + 12966.

It is an arithmetic number, because the mean of its divisors is an integer number (77712).

2³⁸⁸⁵⁴⁵ is an apocalyptic number.

It is an amenable number.

388545 is a deficient number, since it is larger than the sum of its proper divisors (233151).

388545 is a wasteful number, since it uses less digits than its factorization.

388545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25911.

The product of its digits is 19200, while the sum is 33.

The square root of 388545 is about 623.3337789660. Note that the first 3 decimals coincide. The cubic root of 388545 is about 72.9704640631.

The spelling of 388545 in words is "three hundred eighty-eight thousand, five hundred forty-five".