386730 has 24 divisors (see below), whose sum is σ = 1005732. Its totient is φ = 103104.

The previous prime is 386723. The next prime is 386731. The reversal of 386730 is 37683.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 385641 + 1089 = 621^2 + 33^2 .

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 386694 and 386703.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 386730.

It is not an unprimeable number, because it can be changed into a prime (386731) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 2059 + ... + 2238.

2³⁸⁶⁷³⁰ is an apocalyptic number.

386730 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

386730 is an abundant number, since it is smaller than the sum of its proper divisors (619002).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

386730 is a wasteful number, since it uses less digits than its factorization.

386730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4310 (or 4307 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 386730 is about 621.8761934662. The cubic root of 386730 is about 72.8566650158.

The spelling of 386730 in words is "three hundred eighty-six thousand, seven hundred thirty".