389019386 has 16 divisors (see below), whose sum is σ = 670985664. Its totient is φ = 165698784.

The previous prime is 389019359. The next prime is 389019419. The reversal of 389019386 is 683910983.

It is a self number, because there is not a number n which added to its sum of digits gives 389019386.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82955 + ... + 87518.

It is an arithmetic number, because the mean of its divisors is an integer number (41936604).

Almost surely, 2^389019386 is an apocalyptic number.

389019386 is a deficient number, since it is larger than the sum of its proper divisors (281966278).

389019386 is a wasteful number, since it uses less digits than its factorization.

389019386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170645.

The product of its (nonzero) digits is 279936, while the sum is 47.

The square root of 389019386 is about 19723.5743718019. The cubic root of 389019386 is about 730.0014924596.

The spelling of 389019386 in words is "three hundred eighty-nine million, nineteen thousand, three hundred eighty-six".