389422618 has 8 divisors (see below), whose sum is σ = 629067348. Its totient is φ = 179733504.

The previous prime is 389422603. The next prime is 389422619. The reversal of 389422618 is 816224983.

It can be written as a sum of positive squares in 2 ways, for example, as 389391289 + 31329 = 19733^2 + 177^2 .

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

It is not an unprimeable number, because it can be changed into a prime (389422619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7488871 + ... + 7488922.

Almost surely, 2^389422618 is an apocalyptic number.

389422618 is a deficient number, since it is larger than the sum of its proper divisors (239644730).

389422618 is a wasteful number, since it uses less digits than its factorization.

389422618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14977808.

The product of its digits is 165888, while the sum is 43.

The square root of 389422618 is about 19733.7938065644. The cubic root of 389422618 is about 730.2536292649.

The spelling of 389422618 in words is "three hundred eighty-nine million, four hundred twenty-two thousand, six hundred eighteen".