388970 has 16 divisors (see below), whose sum is σ = 709128. Its totient is φ = 153600.

The previous prime is 388963. The next prime is 388991. The reversal of 388970 is 79883.

It can be written as a sum of positive squares in 4 ways, for example, as 380689 + 8281 = 617^2 + 91^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 388970.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 770 + ... + 1170.

2³⁸⁸⁹⁷⁰ is an apocalyptic number.

388970 is a deficient number, since it is larger than the sum of its proper divisors (320158).

388970 is a wasteful number, since it uses less digits than its factorization.

388970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 388970 is about 623.6745946405. The cubic root of 388970 is about 72.9970599929.

The spelling of 388970 in words is "three hundred eighty-eight thousand, nine hundred seventy".