389380193 has 8 divisors (see below), whose sum is σ = 400260840. Its totient is φ = 378518400.

The previous prime is 389380171. The next prime is 389380207. The reversal of 389380193 is 391083983.

It can be written as a sum of positive squares in 4 ways, for example, as 3179089 + 386201104 = 1783^2 + 19652^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 389380193 - 2¹⁶ = 389314657 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (389380793) 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, 44093 + ... + 52181.

It is an arithmetic number, because the mean of its divisors is an integer number (50032605).

Almost surely, 2^389380193 is an apocalyptic number.

It is an amenable number.

389380193 is a deficient number, since it is larger than the sum of its proper divisors (10880647).

389380193 is a wasteful number, since it uses less digits than its factorization.

389380193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9427.

The product of its (nonzero) digits is 139968, while the sum is 44.

The square root of 389380193 is about 19732.7188445992. The cubic root of 389380193 is about 730.2271095458.

The spelling of 389380193 in words is "three hundred eighty-nine million, three hundred eighty thousand, one hundred ninety-three".