389517538 has 8 divisors (see below), whose sum is σ = 584450640. Its totient is φ = 194700660.

The previous prime is 389517533. The next prime is 389517539. The reversal of 389517538 is 835715983.

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

It is a junction number, because it is equal to n+sod(n) for n = 389517491 and 389517500.

It is not an unprimeable number, because it can be changed into a prime (389517533) 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, 20128 + ... + 34411.

It is an arithmetic number, because the mean of its divisors is an integer number (73056330).

Almost surely, 2^389517538 is an apocalyptic number.

389517538 is a deficient number, since it is larger than the sum of its proper divisors (194933102).

389517538 is a wasteful number, since it uses less digits than its factorization.

389517538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58112.

The product of its digits is 907200, while the sum is 49.

The square root of 389517538 is about 19736.1986714767. The cubic root of 389517538 is about 730.3129564502.

The spelling of 389517538 in words is "three hundred eighty-nine million, five hundred seventeen thousand, five hundred thirty-eight".