384518625 has 16 divisors (see below), whose sum is σ = 639839616. Its totient is φ = 205076400.

The previous prime is 384518621. The next prime is 384518639. The reversal of 384518625 is 526815483.

It is not a de Polignac number, because 384518625 - 2² = 384518621 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (384518621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 512317 + ... + 513066.

It is an arithmetic number, because the mean of its divisors is an integer number (39989976).

Almost surely, 2^384518625 is an apocalyptic number.

It is an amenable number.

384518625 is a deficient number, since it is larger than the sum of its proper divisors (255320991).

384518625 is a wasteful number, since it uses less digits than its factorization.

384518625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1025401 (or 1025391 counting only the distinct ones).

The product of its digits is 230400, while the sum is 42.

The square root of 384518625 is about 19609.1464628117. The cubic root of 384518625 is about 727.1753135980.

The spelling of 384518625 in words is "three hundred eighty-four million, five hundred eighteen thousand, six hundred twenty-five".