388130 has 16 divisors (see below), whose sum is σ = 718200. Its totient is φ = 150912.

The previous prime is 388117. The next prime is 388133. The reversal of 388130 is 31883.

388130 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 623²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 388129 + 1 = 623^2 + 1^2 .

It is a junction number, because it is equal to n+sod(n) for n = 388096 and 388105.

It is not an unprimeable number, because it can be changed into a prime (388133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155 + ... + 894.

2³⁸⁸¹³⁰ is an apocalyptic number.

388130 is a deficient number, since it is larger than the sum of its proper divisors (330070).

388130 is a wasteful number, since it uses less digits than its factorization.

388130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1093.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 388130 is about 623.0008025677. Note that the first 3 decimals coincide. The cubic root of 388130 is about 72.9444751982.

The spelling of 388130 in words is "three hundred eighty-eight thousand, one hundred thirty".