385730 has 16 divisors (see below), whose sum is σ = 735480. Its totient is φ = 145152.

The previous prime is 385709. The next prime is 385739. The reversal of 385730 is 37583.

385730 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 261121 + 124609 = 511^2 + 353^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 385730.

It is not an unprimeable number, because it can be changed into a prime (385739) 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, 965 + ... + 1304.

2³⁸⁵⁷³⁰ is an apocalyptic number.

385730 is a deficient number, since it is larger than the sum of its proper divisors (349750).

385730 is a wasteful number, since it uses less digits than its factorization.

385730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2293.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 385730 is about 621.0716544812. The cubic root of 385730 is about 72.7938136272.

The spelling of 385730 in words is "three hundred eighty-five thousand, seven hundred thirty".