384786545 has 16 divisors (see below), whose sum is σ = 542469312. Its totient is φ = 258317760.

The previous prime is 384786541. The next prime is 384786547. The reversal of 384786545 is 545687483.

It is not a de Polignac number, because 384786545 - 2² = 384786541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 384786493 and 384786502.

It is not an unprimeable number, because it can be changed into a prime (384786541) 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, 268367 + ... + 269796.

It is an arithmetic number, because the mean of its divisors is an integer number (33904332).

Almost surely, 2^384786545 is an apocalyptic number.

It is an amenable number.

384786545 is a deficient number, since it is larger than the sum of its proper divisors (157682767).

384786545 is a wasteful number, since it uses less digits than its factorization.

384786545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538192.

The product of its digits is 3225600, while the sum is 50.

The square root of 384786545 is about 19615.9767791461. The cubic root of 384786545 is about 727.3441650447.

The spelling of 384786545 in words is "three hundred eighty-four million, seven hundred eighty-six thousand, five hundred forty-five".