388516 has 24 divisors (see below), whose sum is σ = 733824. Its totient is φ = 179520.

The previous prime is 388499. The next prime is 388519. The reversal of 388516 is 615883.

It is not an unprimeable number, because it can be changed into a prime (388519) by changing a digit.

388516 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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, 3721 + ... + 3823.

It is an arithmetic number, because the mean of its divisors is an integer number (30576).

2³⁸⁸⁵¹⁶ is an apocalyptic number.

It is an amenable number.

388516 is a deficient number, since it is larger than the sum of its proper divisors (345308).

388516 is a wasteful number, since it uses less digits than its factorization.

388516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171 (or 169 counting only the distinct ones).

The product of its digits is 5760, while the sum is 31.

The square root of 388516 is about 623.3105165164. The cubic root of 388516 is about 72.9686485753.

The spelling of 388516 in words is "three hundred eighty-eight thousand, five hundred sixteen".