388225 has 12 divisors (see below), whose sum is σ = 492156. Its totient is φ = 303680.

The previous prime is 388211. The next prime is 388231. The reversal of 388225 is 522883.

It can be written as a sum of positive squares in 6 ways, for example, as 23409 + 364816 = 153^2 + 604^2 .

It is not a de Polignac number, because 388225 - 2¹⁵ = 355457 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 388193 and 388202.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1179 + ... + 1471.

It is an arithmetic number, because the mean of its divisors is an integer number (41013).

2³⁸⁸²²⁵ is an apocalyptic number.

It is an amenable number.

388225 is a deficient number, since it is larger than the sum of its proper divisors (103931).

388225 is a wasteful number, since it uses less digits than its factorization.

388225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356 (or 351 counting only the distinct ones).

The product of its digits is 3840, while the sum is 28.

The square root of 388225 is about 623.0770417854. The cubic root of 388225 is about 72.9504260908.

The spelling of 388225 in words is "three hundred eighty-eight thousand, two hundred twenty-five".