389518475 has 12 divisors (see below), whose sum is σ = 483502536. Its totient is φ = 311292480.

The previous prime is 389518471. The next prime is 389518477. The reversal of 389518475 is 574815983.

It is not a de Polignac number, because 389518475 - 2² = 389518471 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (389518471) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18284 + ... + 33366.

It is an arithmetic number, because the mean of its divisors is an integer number (40291878).

Almost surely, 2^389518475 is an apocalyptic number.

389518475 is a deficient number, since it is larger than the sum of its proper divisors (93984061).

389518475 is a wasteful number, since it uses less digits than its factorization.

389518475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16126 (or 16121 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 50.

The square root of 389518475 is about 19736.2224095697. Note that the first 3 decimals coincide. The cubic root of 389518475 is about 730.3135420487.

The spelling of 389518475 in words is "three hundred eighty-nine million, five hundred eighteen thousand, four hundred seventy-five".