389318494 has 4 divisors (see below), whose sum is σ = 583977744. Its totient is φ = 194659246.

The previous prime is 389318453. The next prime is 389318497. The reversal of 389318494 is 494813983.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 494813983 = 3271 ⋅151273.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389318497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97329622 + ... + 97329625.

It is an arithmetic number, because the mean of its divisors is an integer number (145994436).

Almost surely, 2^389318494 is an apocalyptic number.

389318494 is a deficient number, since it is larger than the sum of its proper divisors (194659250).

389318494 is a wasteful number, since it uses less digits than its factorization.

389318494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194659249.

The product of its digits is 746496, while the sum is 49.

The square root of 389318494 is about 19731.1554147242. The cubic root of 389318494 is about 730.1885382786.

The spelling of 389318494 in words is "three hundred eighty-nine million, three hundred eighteen thousand, four hundred ninety-four".